The Iberian Union is a historiographical term used to describe the period in which the
Monarchy of Spain under Habsburg dynasty, until then the
personal union
A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...
of the crowns of
Castile and
Aragon
Aragon ( , ; Spanish and ; ) is an autonomous communities of Spain, autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. In northeastern Spain, the Aragonese autonomous community comprises three provinces of Spain, ...
, incorporated the
Kingdom of Portugal
The Kingdom of Portugal was a Portuguese monarchy, monarchy in the western Iberian Peninsula and the predecessor of the modern Portuguese Republic. Existing to various extents between 1139 and 1910, it was also known as the Kingdom of Portugal a ...
under the same terms, that existed between 1580 and 1640 and brought the entire
Iberian Peninsula
The Iberian Peninsula ( ), also known as Iberia, is a peninsula in south-western Europe. Mostly separated from the rest of the European landmass by the Pyrenees, it includes the territories of peninsular Spain and Continental Portugal, comprisin ...
except
Andorra
Andorra, officially the Principality of Andorra, is a Sovereignty, sovereign landlocked country on the Iberian Peninsula, in the eastern Pyrenees in Southwestern Europe, Andorra–France border, bordered by France to the north and Spain to A ...
, as well as
Portuguese and
Spanish overseas possessions, under the Spanish Habsburg monarchs
Philip II,
Philip III, and
Philip IV. The union began after the
Portuguese succession crisis of 1580
The Portuguese succession crisis of 1580 () emerged as a result of the disappearance of young King Sebastian I of Portugal in the Battle of Alcácer Quibir in 1578 and the death without issue of his successor and great-uncle Henry I in 1580. A ...
and the ensuing
War of the Portuguese Succession
The War of the Portuguese Succession, a result of the extinction of the Portuguese royal line after the Battle of Alcácer Quibir and the ensuing Portuguese succession crisis of 1580, was fought from 1580 to 1583 between the two main claimant ...
, and lasted until the
Portuguese Restoration War
The Restoration War (), historically known as the Acclamation War (''Guerra da Aclamação''), was the war between Portugal and Spain that began with the Portuguese revolution of 1640 and ended with the Treaty of Lisbon in 1668, bringing a forma ...
, during which the
House of Braganza
The Most Serene House of Braganza (), also known as the Brigantine dynasty (''dinastia Brigantina''), is a dynasty of emperors, kings, princes, and dukes of Portuguese people, Portuguese origin which reigned in Europe and the Americas.
The hous ...
was established as Portugal's new ruling dynasty with the acclamation of
John IV as the new
king of Portugal
This is a list of Portuguese monarchs who ruled from the establishment of the Kingdom of Portugal, in 1139, to the deposition of the Portuguese monarchy and creation of the Portugal, Portuguese Republic with the 5 October 1910 revolution.
Thro ...
.
As a personal union, the Kingdom of Portugal, the Crown of Castile and the states of the Crown of Aragon remained independent states, sharing only a single monarch. The kings from the Spanish branch of the
House of Habsburg
The House of Habsburg (; ), also known as the House of Austria, was one of the most powerful Dynasty, dynasties in the history of Europe and Western civilization. They were best known for their inbreeding and for ruling vast realms throughout ...
were the only element that connected the multiple kingdoms and territories, ruled by the six separate government councils of
Castile,
Aragon
Aragon ( , ; Spanish and ; ) is an autonomous communities of Spain, autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. In northeastern Spain, the Aragonese autonomous community comprises three provinces of Spain, ...
,
Portugal
Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...
,
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
,
Flanders-Burgundy, and
the Indies
The East Indies (or simply the Indies) is a term used in historical narratives of the Age of Discovery. The ''Indies'' broadly referred to various lands in the East or the Eastern Hemisphere, particularly the islands and mainlands found in ...
. For periods, Portugal maintained a viceroy, appointed by the king, although the turnover was often rapid; in the 60 years of the Union, the country had 13 viceroys and four regency councils (see
List of viceroys of Portugal). Similar viceroys were appointed in
Aragon
Aragon ( , ; Spanish and ; ) is an autonomous communities of Spain, autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. In northeastern Spain, the Aragonese autonomous community comprises three provinces of Spain, ...
,
Catalonia
Catalonia is an autonomous community of Spain, designated as a ''nationalities and regions of Spain, nationality'' by its Statute of Autonomy of Catalonia of 2006, Statute of Autonomy. Most of its territory (except the Val d'Aran) is situate ...
,
Valencia
Valencia ( , ), formally València (), is the capital of the Province of Valencia, province and Autonomous communities of Spain, autonomous community of Valencian Community, the same name in Spain. It is located on the banks of the Turia (r ...
and other kingdoms of the Union. The governments, institutions, and legal traditions of each kingdom remained independent of one another.
Alien laws (''Leyes de extranjería'') determined that a national of one kingdom was a foreigner in all other kingdoms.
Possessing territories in all known continents of the time, the Iberian Union was the most wide-spread empire of the early modern era. The Union led to Portugal's involvement in the
Dutch Revolt
The Eighty Years' War or Dutch Revolt (; 1566/1568–1648) was an armed conflict in the Habsburg Netherlands between disparate groups of rebels and the Spanish government. The causes of the war included the Reformation, centralisation, exc ...
against Spain. The
Dutch Republic
The United Provinces of the Netherlands, commonly referred to in historiography as the Dutch Republic, was a confederation that existed from 1579 until the Batavian Revolution in 1795. It was a predecessor state of the present-day Netherlands ...
in turn saw the union as a justification to
start targeting Portuguese colonies and would weaken Portugal's overseas empire in the Orient.
Background
The unification of the peninsula had long been a goal of the region's monarchs with the intent of restoring the
Visigothic monarchy.
Sancho III of Navarre and
Alfonso VII of León and Castile had both taken the title ''
Imperator totius Hispaniae
is a Latin title meaning "Emperor of All Spain". In Spain in the Middle Ages, the title "emperor" (from Latin ''imperator'') was used under a variety of circumstances from the ninth century onwards, but its usage peaked, as a formal and practi ...
'', meaning "Emperor of All
Hispania
Hispania was the Ancient Rome, Roman name for the Iberian Peninsula. Under the Roman Republic, Hispania was divided into two Roman province, provinces: Hispania Citerior and Hispania Ulterior. During the Principate, Hispania Ulterior was divide ...
". There were many attempts to unite the different kingdoms after Alfonso VII's death in 1109, especially through a policy of intermarriage. Some of the most famous attempts are those of
Miguel da Paz, who would inherit the crowns of
Portugal
Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...
,
Leon,
Castile, and
Aragon
Aragon ( , ; Spanish and ; ) is an autonomous communities of Spain, autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. In northeastern Spain, the Aragonese autonomous community comprises three provinces of Spain, ...
, but who died at a young age; and those of
Afonso, Prince of Portugal
Afonso, Hereditary Prince of Portugal (; 18 May 147513 July 1491) was the heir apparent to the throne of Portugal. He was born in Lisbon, Portugal, and died in a horse-riding accident on the banks of the river Tagus.
Heir apparent
Afonso, named ...
, who was to marry the eldest daughter of the
Catholic Monarchs
The Catholic Monarchs were Isabella I of Castile, Queen Isabella I of Crown of Castile, Castile () and Ferdinand II of Aragon, King Ferdinand II of Crown of Aragón, Aragon (), whose marriage and joint rule marked the ''de facto'' unification of ...
, if not for his untimely death by an accident in which he fell off his horse.
Establishment
The
Battle of Alcácer Quibir in 1578 saw the death of the young king
Sebastian. Sebastian's granduncle and successor,
Cardinal
Cardinal or The Cardinal most commonly refers to
* Cardinalidae, a family of North and South American birds
**''Cardinalis'', genus of three species in the family Cardinalidae
***Northern cardinal, ''Cardinalis cardinalis'', the common cardinal of ...
Henry
Henry may refer to:
People and fictional characters
* Henry (given name), including lists of people and fictional characters
* Henry (surname)
* Henry, a stage name of François-Louis Henry (1786–1855), French baritone
Arts and entertainmen ...
, was 66 years old at the time. Henry's death was followed by a succession crisis, with three grandchildren of
Manuel I claiming the throne:
Infanta Catarina, Duchess of Braganza
Infanta Catherine of Portugal, Duchess of Braganza by marriage (; , 18 January 1540 – 15 November 1614) was a Portugal, Portuguese ''infanta'' (princess) claimant to the throne during the Portuguese succession crisis of 1580.
Biography Ba ...
(married to
John, 6th Duke of Braganza),
António, Prior of Crato, and King
Philip II of Spain
Philip II (21 May 152713 September 1598), sometimes known in Spain as Philip the Prudent (), was King of Spain from 1556, King of Portugal from 1580, and King of Naples and List of Sicilian monarchs, Sicily from 1554 until his death in 1598. He ...
. António had been acclaimed
king of Portugal
This is a list of Portuguese monarchs who ruled from the establishment of the Kingdom of Portugal, in 1139, to the deposition of the Portuguese monarchy and creation of the Portugal, Portuguese Republic with the 5 October 1910 revolution.
Thro ...
by the people of
Santarém on 24 July 1580, and then in many cities and towns throughout the country. Some members of the Council of Governors of Portugal who had supported Philip escaped to Spain and declared him to be the legal successor of Henry. Philip marched into Portugal and defeated the troops loyal to the Prior of Crato in the
Battle of Alcântara. The troops occupying the countryside (
Tercios) commanded by
Fernando Álvarez de Toledo, 3rd Duke of Alba
Fernando Álvarez de Toledo y Pimentel, 3rd Duke of Alba (29 October 150711 December 1582), known as the Grand Duke of Alba (, ) in Spain and Portugal and as the Iron Duke () or shortly 'Alva' in the Netherlands, was a Spaniards, Spanish noblema ...
arrived in Lisbon. The Duke of Alba imposed on the Portuguese provinces a subjection of Philip before entering Lisbon, where he seized an immense treasure; meanwhile, he allowed his soldiers to sack the vicinity of the capital. Philip was recognized as king by the Cortes of
Tomar
Tomar (), also known in English as Thomar (the ancient name of Tomar), is a Portugal, Portuguese city and a municipality in the historical Ribatejo Portuguese Provinces of Portugal, province, and in Santarém District, Santarém district. The to ...
in 1581, beginning the reign of the
House of Habsburg
The House of Habsburg (; ), also known as the House of Austria, was one of the most powerful Dynasty, dynasties in the history of Europe and Western civilization. They were best known for their inbreeding and for ruling vast realms throughout ...
over Portugal. When Philip left in 1583 to Madrid, he made his nephew
Albert of Austria his viceroy in Lisbon. In Madrid he established a
Council of Portugal to advise him on Portuguese affairs.
António exploited the opportunity that the
war between Elizabeth and Philip presented in order to convince the
English to back an amphibious assault on Portugal in April 1589. Led by
Francis Drake
Sir Francis Drake ( 1540 – 28 January 1596) was an English Exploration, explorer and privateer best known for making the Francis Drake's circumnavigation, second circumnavigation of the world in a single expedition between 1577 and 1580 (bein ...
and
John Norris, the
expedition of 120 ships and 19,000 men failed due to poor planning.
Portugal's status was maintained under the first two kings under the Union, Philip II and
Philip III. Both monarchs gave excellent positions to Portuguese nobles in the Spanish
courts
A court is an institution, often a government entity, with the authority to adjudicate legal disputes between parties and administer justice in civil, criminal, and administrative matters in accordance with the rule of law.
Courts gene ...
, and Portugal maintained an independent law, currency, and government. It was even proposed to move the royal capital to Lisbon.
Continuity in the administrative system
The
history of Portugal
The history of Portugal can be traced from circa 400,000 years ago, when the region of present-day Portugal was inhabited by ''Homo heidelbergensis''.
The Roman conquest of the Iberian Peninsula, which lasted almost two centuries, led to the es ...
from the
dynastic crisis in 1578 to the first
Braganza dynasty monarchs was a period of transition. The
Portuguese Empire
The Portuguese Empire was a colonial empire that existed between 1415 and 1999. In conjunction with the Spanish Empire, it ushered in the European Age of Discovery. It achieved a global scale, controlling vast portions of the Americas, Africa ...
's
spice trade
The spice trade involved historical civilizations in Asia, Northeast Africa and Europe. Spices, such as cinnamon, cassia, cardamom, ginger, pepper, nutmeg, star anise, clove, and turmeric, were known and used in antiquity and traded in t ...
was peaking at the start of this period following the great
age of exploration
The Age of Discovery (), also known as the Age of Exploration, was part of the early modern period and overlapped with the Age of Sail. It was a period from approximately the 15th to the 17th century, during which Seamanship, seafarers fro ...
. It continued to enjoy widespread influence and dominated global trade routes.
Due to the complexity in the management of government, the Spanish monarch needed some auxiliary bodies, as the
Councils (''Consejos''), dedicated to the advice and resolution of problems, and submitted to the monarch's knowledge and dictum. This complexity needed a permanent seat, and Philip II of Spain established in 1562 the permanent capital in
Madrid
Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
, seat of the Royal Court and of the administrative staff, although transferred to
Valladolid
Valladolid ( ; ) is a Municipalities of Spain, municipality in Spain and the primary seat of government and ''de facto'' capital of the Autonomous communities of Spain, autonomous community of Castile and León. It is also the capital of the pr ...
, with the whole administrative staff, during a brief period (1601–1606).
The government functioned as follows; the administrative correspondence came to the different Councils in Madrid, then the
secretary of every Council arranged the material for the attention of the king, and later the king assembled with the secretaries requesting the opinion of the council. After that, the Council held a session to deal with the issue and to formally agree to consult the monarch. The secretary raised the issue to the king, and his reply was returned to the council with the decision to be executed. The meetings of the Councils took place in the royal palace, and they did not count on the presence of the king habitually. In this poly-synodical system, "Consejo de Estado" (Council of State) stood out for its importance. The ''Consejo de Estado'' in Madrid, entrusted to declare on the major decisions that concerned the organization and the defense of the ensemble of the Hispanic monarchy, and it had frequently that to get into Portuguese matters. Even, the Council of War (''Consejo de Guerra'') exercised its jurisdiction on the troops placed in the Castilian strongholds established on the Portuguese littoral.
And also, there were Councils of territorial character, which functions specialized in a concrete territorial space, the
Council of Castile
The Council of Castile (), known earlier as the Royal Council (), was a ruling body and key part of the domestic government of the Crown of Castile, second only to the monarch himself.
It was established under Isabella I in 1480 as the chi ...
,
Council of Aragon,
Council of Navarre,
Council of Italy
The Council of Italy, officially the Royal and Supreme Council of Italy (, ), was a ruling body and key part of the government of the Spanish Empire in Early Modern Europe, Europe, second only to the monarch himself. It was based in Madrid and ...
,
Council of the Indies
A council is a group of people who come together to consult, deliberate, or make decisions. A council may function as a legislature, especially at a town, city or county/shire level, but most legislative bodies at the state/provincial or nati ...
,
Council of Flanders, and the
Council of Portugal. The Council of Portugal, established in 1582, was integrated with a president and six (later four) counselors, and it was abolished at the end of the war in 1668, when
Charles II of Spain
Charles II (6 November 1661 – 1 November 1700) was King of Spain from 1665 to 1700. The last monarch from the House of Habsburg, which had ruled Spain since 1516, he died without an heir, leading to a European Great Power conflict over the succ ...
gave up his title as king of Portugal. The function of the Council consisted in representing the Cortes of the Crown of Portugal for matters of justice and the economy. Any decision of the king concerning his kingdom had to be consulted with the council before being transmitted to the chancellery of Lisbon and to the concerned courts. The Council of Portugal was briefly replaced twice: in 1619, with the presence of the king in Lisbon, and between 1639 and 1658, when it was replaced by the Junta of Portugal. From the Restoration, the Council continued existing, since
Philip IV had not recognized the independence of Portugal, and continued administering those Portuguese faithful to the Spanish monarch, and the government of
Ceuta
Ceuta (, , ; ) is an Autonomous communities of Spain#Autonomous cities, autonomous city of Spain on the North African coast. Bordered by Morocco, it lies along the boundary between the Mediterranean Sea and the Atlantic Ocean. Ceuta is one of th ...
.
Relating to the particular government of the Kingdom of Portugal itself. During the union of the Kingdom of Portugal to the Spanish monarchy, the Spanish Hasburgs on the whole respected the pledges made at Thomar in 1581 to allow considerable Portuguese autonomy and to respect the territories of its empire. Public offices were reserved for Portuguese subjects at home and overseas. The king was represented at Lisbon sometimes by a governor and sometimes by a viceroy. So, Spain left the administration of Portugal and its empire largely to the Portuguese themselves, under general supervision from Madrid channeled through the viceroy in Lisbon. Important matters, however, were referred to Madrid, where they came before the Council of Portugal. In the Kingdom of Portugal, the polysynodial system was reinforced:
* The ''Conselho de Estado'' (Council of State) of Lisbon was the king of Portugal's private Council, entrusted of debating major issues related to the Crown, especially for foreign policy. The counselors could send their remarks to the king, and the king consulted them through his viceroy. Although the ''Conselho de Estado'' of Lisbon, worked as the advisory body to the viceroy, this Council of State was without clearly defined administrative powers and did not perform any relevant role of coordination. The Spanish kings maintained the system of two
secretaries of state, one for the kingdom and the other for "India", that is to say, for the colonies, despite several conflicts over jurisdiction, until the creation of the ''Conselho da Índia'' in 1604.
* In the same way, Spanish kings retained the ''Mesa da Consciência e Ordens'', which was both tribunal and council for religious affairs and was responsible for administering ecclesiastical appointments and for the property of the military orders in the colonies as well as in the home country.
*
Portuguese Inquisition
The Portuguese Inquisition (Portuguese language, Portuguese: ''Inquisição Portuguesa''), officially known as the General Council of the Holy Office of the Inquisition in Portugal, was formally established in Kingdom of Portugal, Portugal in 15 ...
remained independent from the ''Mesa da Consciência e Ordens''. There were three major courts in Lisbon, Coimbra and Évora.

* Also preserved was the ''Desembargo do Paço'' (Royal Board of Justice) is Lisbon. This board, the highest law court in the kingdom of Portugal, controlled the appointment of all magistrates and judges and oversaw the ''Casa da Suplicação'' (Court of Appeals) in Lisbon, as well as the high courts in the Portuguese overseas territories. The first function of the ''Desembargo do Paço'' was to control the recruitment of the magistrates (''leitura de bacharéis'') and to monitor them in the exercise of their charge, its control spread to the whole of the juridical professions. The ''Desembargo do Paço'' had to arbitrate conflicts between other courts of the kingdom. This court granted dispensations, acts of legitimization and another relevant issues about the justice and the grace, and which on occasion advised the king on political and economic as well as judicial matters. Moreover, a commission of jurists set up to reform the legal system produced a new code for Portugal, the ''Ordenações Filipinas'', promulgated in 1603.
* The ''Casa da Suplicação'' and the ''Casa do Cível'' were royal courts of appeal for civil cases as criminal cases. The ''Casa do Cível'' exercised jurisdiction over the northern part of the kingdom, and the ''Casa da Suplicação'' over the rest on the realm including the islands and overseas.
* In 1591, the four ''Vedores da Fazenda'' (overseers of the Treasury) were replaced by a ''Conselho da Fazenda'' composed of one ''Vedor da Fazenda'' presiding over four councillors (two of them lawyers) and four secretaries. The ''Conselho da Fazenda'' exercised a control over the officials of finance, administered the king's property and exercised its jurisdiction over the customs and the arsenals, the court of accounts and the administration of the monopolistic trade with overseas.
* From 1604, the newly created ''Conselho da Índia'' was invested with powers for all overseas affairs, apart from matters concerning Madeira, the Azores and the strongholds of Morocco, and colonial officials were appointed and their dispatches handled by it. However, it was the ''Conselho da Fazenda'' which dealt with naval expeditions, the buying and selling of pepper and the collection of the royal revenues, in fact with all economic business. The ''Conselho da Índia'', therefore, exercised only limited powers. As a creation of the Spanish king, it was regarded with disfavour by the Portuguese and because of the jealousy of the ''Mesa da Consciência e Ordens'' disappeared in 1614.
For urgent matters, a system of meetings was introduced, such as the Junta for the reform of the Council of Portugal (1606–1607, 1610), the Junta for the classification of the debts to the treasury (since 1627) or the Juntas for the organization of the navies of succor of Brazil (since 1637).
Portuguese Empire challenged
Throughout the 17th century, the increasing raids on Portuguese merchant shipping by
Dutch,
English and
French privateer
A privateer is a private person or vessel which engages in commerce raiding under a commission of war. Since robbery under arms was a common aspect of seaborne trade, until the early 19th century all merchant ships carried arms. A sovereign o ...
s and their establishment of trading posts in Africa, Asia and the Americas undermined Portugal's monopoly on the lucrative
spice trade
The spice trade involved historical civilizations in Asia, Northeast Africa and Europe. Spices, such as cinnamon, cassia, cardamom, ginger, pepper, nutmeg, star anise, clove, and turmeric, were known and used in antiquity and traded in t ...
. This sent the Portuguese spice trade into a long decline. The diversion of wealth from Portugal by the Habsburg monarchy to support the Catholic side of the
Thirty Years' War
The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in History of Europe, European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine ...
also created strains within the union, although Portugal did also benefit from Spanish military power in helping to retain
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
and in disrupting Dutch trade. These events, and those that occurred at the end of
Aviz dynasty
The House of Aviz (Portuguese language, Portuguese: ''Casa de Avis'' ), also known as the Joanine Dynasty (''Dinastia Joanina''), was a dynasty of Portuguese people, Portuguese origin which flourished during the Portuguese Renaissance, Renaissanc ...
and the Iberian Union, led Portugal to a state of economic dependency on its colonies, first
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
and then Brazil.
The joining of the two crowns deprived Portugal of a separate foreign policy, and Spain's enemies became Portugal's. England had been an ally of Portugal since the
Treaty of Windsor in 1386. War between Spain and England led to a deterioration of the relations with Portugal's oldest ally, and the loss of
Hormuz. War with the Dutch led to invasions of many countries in
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
, including
Portuguese Ceylon
Portuguese Ceylon (; ; ) is the name given to the territory on Ceylon, modern-day Sri Lanka, controlled by the Portuguese Empire between 1597 and 1658.
Portuguese presence in the island lasted from 1505 to 1658. Their arrival was largely accide ...
(today's
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...
), and commercial interests in
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
,
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
(
Mina), and
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
. Even though the Portuguese were unable to capture the entire island of Ceylon, they were able to keep the coastal regions of Ceylon under their control for a considerable time. Brazil was partially conquered by both
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
and the
Dutch.
In the 17th century, taking advantage of this period of Portuguese weakness, many Portuguese territories in Brazil were occupied by the Dutch, who gained access to the
sugarcane
Sugarcane or sugar cane is a species of tall, Perennial plant, perennial grass (in the genus ''Saccharum'', tribe Andropogoneae) that is used for sugar Sugar industry, production. The plants are 2–6 m (6–20 ft) tall with stout, jointed, fib ...
plantation
Plantations are farms specializing in cash crops, usually mainly planting a single crop, with perhaps ancillary areas for vegetables for eating and so on. Plantations, centered on a plantation house, grow crops including cotton, cannabis, tob ...
s. The whole Brazilian northeast was occupied, but the Dutch conquest was short-lived. The
Recapture of Bahia by a Spanish-Portuguese fleet in 1625 was followed by a rapid recovery of the lost territories. The Dutch returned in 1630 and captured
Recife
Recife ( , ) is the Federative units of Brazil, state capital of Pernambuco, Brazil, on the northeastern Atlantic Ocean, Atlantic coast of South America. It is the largest urban area within both the North Region, Brazil, North and the Northeast R ...
and
Olinda
Olinda () is a historic city in Pernambuco, Brazil, in the Northeast Region, Brazil, Northeast Region. It is located on the country's northeastern Atlantic Ocean coast, in the Recife metropolitan area, Metropolitan Region of Recife, the state ca ...
in the captaincy of
Pernambuco
Pernambuco ( , , ) is a States of Brazil, state of Brazil located in the Northeast Region, Brazil, Northeast region of the country. With an estimated population of 9.5 million people as of 2024, it is the List of Brazilian states by population, ...
, the largest and richest sugar-producing area in the world.
John Maurice, Prince of Nassau-Siegen, was appointed as the governor of the Dutch possessions in Brazil in 1637 by the
Dutch West India Company
The Dutch West India Company () was a Dutch chartered company that was founded in 1621 and went defunct in 1792. Among its founders were Reynier Pauw, Willem Usselincx (1567–1647), and Jessé de Forest (1576–1624). On 3 June 1621, it was gra ...
. He landed at Recife, the port of Pernambuco, in January 1637. By a series of successful expeditions, he gradually extended the Dutch possessions from
Sergipe
Sergipe (), officially State of Sergipe, is a States of Brazil, state of Brazil. Located in the Northeast Region, Brazil, Northeast Region along the Atlantic Ocean, Atlantic coast of the country, Sergipe is the smallest state in Brazil by geogra ...
in the south to
São Luís, Maranhão
São Luís (; "Saint Louis") is the capital and largest city of the Brazilian state of Maranhão. The city is located on Upaon-açu Island or Ilha de São Luís, in the Baía de São Marcos (''Saint Mark's Bay''), an extension of the Atlantic ...
in the north. He likewise conquered the Portuguese possessions of
Elmina Castle,
São Tomé Island
São Tomé Island, at , is the largest island of São Tomé and Príncipe and is home in May 2018 to about 193,380 or 96% of the nation's population. The island is divided into six districts of São Tomé and Príncipe, districts. It is located ...
, and
Luanda
Luanda ( ) is the Capital city, capital and List of cities and towns in Angola, largest city of Angola. It is Angola's primary port, and its major industrial, cultural and urban centre. Located on Angola's northern Atlantic coast, Luanda is Ang ...
, Angola, on the west coast of Africa. This began a war over Brazil, which would see the Dutch establish a colony called
New Holland. However, the
Second Battle of Guararapes, the second and decisive battle in a conflict called Pernambucana Insurrection, ended the Dutch occupation of the Portuguese colony of Brazil.
On the other hand, the Iberian Union opened to both countries a worldwide span of control, as Portugal dominated the African and Asian coasts that surrounded the Indian Ocean, and Spain the Pacific Ocean and both sides of Central and South America, while both shared the Atlantic Ocean space.
Decline of the Union and revolt of Portugal

When Philip II of Portugal (and III of Spain) died, he was succeeded by
Philip III (and IV of Spain), who had a different approach on Portuguese issues. Taxes raised affected mainly the Portuguese merchants (Carmo Reis 1587). The Portuguese nobility began to lose its importance at the Spanish
''Cortes'', and government posts in Portugal were occupied by Spaniards. Ultimately, Philip III tried to make Portugal a royal province, and Portuguese nobles lost all of their power.
Several other problems also damaged Portuguese support of their union with Spain. One of these was certainly the pressure from the center, especially from
Gaspar de Guzmán, Count-Duke of Olivares
Gaspar de Guzmán y Pimentel, 1st Duke of Sanlúcar, 3rd Count of Olivares, , known as the Count-Duke of Olivares (taken by joining both Count of Olivares, his countship and Duke of Sanlúcar la Mayor, subsequent dukedom) (6 January 1587 – 2 ...
, towards uniformity and sharing the financial and military burden of Castile's wars in Europe. However, the Portuguese were hardly inclined to help with that, as Spain had failed to prevent the
Dutch West India Company
The Dutch West India Company () was a Dutch chartered company that was founded in 1621 and went defunct in 1792. Among its founders were Reynier Pauw, Willem Usselincx (1567–1647), and Jessé de Forest (1576–1624). On 3 June 1621, it was gra ...
's occupation of several of Portugal's colonial holdings, despite the fact that both the Portuguese and the Spanish were nominally under the same crown.
This situation culminated in a revolution by the nobility and high ''
bourgeoisie
The bourgeoisie ( , ) are a class of business owners, merchants and wealthy people, in general, which emerged in the Late Middle Ages, originally as a "middle class" between the peasantry and aristocracy. They are traditionally contrasted wi ...
'' on 1 December 1640, 60 years after the crowning of Philip I.
This revolution, while foreseeable, was most immediately sparked by a popular and institutional
revolt
Rebellion is an uprising that resists and is organized against one's government. A rebel is a person who engages in a rebellion. A rebel group is a consciously coordinated group that seeks to gain political control over an entire state or a ...
in the
Principality of Catalonia
The Principality of Catalonia (; ; ; ) was a Middle Ages, medieval and early modern state (polity), state in the northeastern Iberian Peninsula. During most of its history it was in dynastic union with the Kingdom of Aragon, constituting together ...
against the Crown. The plot was planned by
Antão de Almada, 7th Count of Avranches, Miguel de Almeida and João Pinto Ribeiro. They, together with several associates, known as the
Forty Conspirators
The Forty Conspirators ( Portuguese: ''Os Quarenta Conjurados''), were a Portuguese nationalist group during the Iberian Union. The Conspirators were composed of forty men of the Portuguese nobility, and many clergy and soldiers. Their goal w ...
, took advantage of the fact that the Castilian troops were occupied in the other side of the Iberian Peninsula. The rebels killed
Secretary of State Miguel de Vasconcelos and imprisoned the king's cousin,
Margaret of Savoy, Vicereine of Portugal
Margaret of Savoy (28 April 1589 – 26 June 1655) was the last Habsburg Vicereine of Portugal from 1634 to 1640.Raviola, Blythe Alice (2016). "The three Lives of Margherita of Savoy-Gonzaga, Duchess of Mantua and Vicereine of Portugal." In Cruz ...
, who had governed Portugal in his name. The moment was well chosen, as Philip's troops were at the time fighting the
Thirty Years' War
The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in History of Europe, European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine ...
in addition to the previously mentioned revolution in Catalonia.
The support of the people became apparent almost immediately and soon
John, 8th Duke of Braganza, was acclaimed
king of Portugal
This is a list of Portuguese monarchs who ruled from the establishment of the Kingdom of Portugal, in 1139, to the deposition of the Portuguese monarchy and creation of the Portugal, Portuguese Republic with the 5 October 1910 revolution.
Thro ...
throughout the country as John IV.
By 2 December 1640, John had already sent a letter to the Municipal Chamber of
Évora
Évora ( , ), officially the Very Noble and Ever Loyal City of Évora (), is a city and a municipalities of Portugal, municipality in Portugal. It has 53,591 inhabitants (2021), in an area of . It is the historic capital of the Alentejo reg ...
as sovereign of the country.
Restoration War and the end of the Union
The subsequent
Portuguese Restoration War
The Restoration War (), historically known as the Acclamation War (''Guerra da Aclamação''), was the war between Portugal and Spain that began with the Portuguese revolution of 1640 and ended with the Treaty of Lisbon in 1668, bringing a forma ...
against Philip III () consisted mainly of small skirmishes near the border. The most significant battles were the
Battle of the Lines of Elvas (1659), the
Battle of Ameixial (1663), the
Battle of Castelo Rodrigo (1664), and the
Battle of Montes Claros (1665); the Portuguese were victorious in all of these battles. However, the Spaniards won the
Battle of Vilanova
The Battle of Vilanova took place on 17 September 1658 during the Portuguese Restoration War near the Fort of São Luis de Gonzaga, located south of Tui in the southern bank of the Minho River. A Spanish army commanded by the Governor of Galic ...
(1658) and the
Battle of the Berlengas (1666). The
Battle of Montijo
The Battle of Montijo was fought on 26 May 1644 near Montijo, Spain, during the Portuguese Restoration War. Portuguese and Spanish forces clashed in a chaotic engagement that ended without a clear strategic victor. While Portuguese forces tem ...
(1644) was indecisive, starting out with great Spanish success and ending with Portuguese success; the number of casualties were nearly equal.
Several decisions made by John IV to strengthen his forces made these victories possible. On 11 December 1640, the Council of War was created to organize all the operations.
[(Mattoso Vol. VIII 1993)] Next, the king created the Junta of the Frontiers, to take care of the fortresses near the border, the hypothetical defense of
Lisbon
Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...
, and the garrisons and sea ports. In December 1641, a tenancy was created to assure upgrades on all
fortress
A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from L ...
es that would be paid with regional taxes. John IV also organized the army, established the Military Laws of King Sebastian, and developed intense diplomatic activity focused on restoring good relations with England. Meanwhile, the best Spanish forces were pre-occupied with their battles against the
French in Catalonia, along the Pyrenees, Italy and the Low Countries. The Spanish forces in Portugal never received adequate support. Nevertheless, Philip IV felt he could not give up what he regarded as his rightful inheritance. By the time the war with France ended in 1659, the Portuguese military were well established and ready to confront the last major attempt of a worn out Spanish regime to reclaim control.
English soldiers were sent to Portugal and helped the Portuguese rout
Don John's army at Ameixial near
Estremoz on June 8, 1663. The Spaniards lost 8,000 men and all their artillery while the Portuguese had only 2,000 casualties. On 7 July 1664 about 3,000 Portuguese met 7,000 Spaniards near Figueira de Castelo Rodrigo and killed 2,000 and took 500 prisoners. Many Spanish communities lost population and blamed their decline on the war against Portugal. Louis XIV sent French troops to Lisbon, and on 17 June 1665 the German General
Frederick Schomberg led about 20,000 Portuguese forces to victory at Montes Claros near
Vila Viçosa
Vila Viçosa () is a town and a municipality in the Évora (district), District of Évora, Alentejo in Portugal. The population in 2011 was 8,319, in an area of 194.86 km².
The municipal holiday is August 16.
Parishes
Administratively, th ...
with only 700 killed and 2,000 wounded. The Spanish army of 22,600 men was devastated with 4,000 dead and 6,000 captured. Protests erupted in Madrid as Spain had wasted 25 million
ducat
The ducat ( ) coin was used as a trade coin in Europe from the later Middle Ages to the 19th century. Its most familiar version, the gold ducat or sequin containing around of 98.6% fine gold, originated in Venice in 1284 and gained wide inter ...
s on the disastrous Portuguese war. The Spanish tried to carry on the war for two more years of increasingly fitful warfare. Spain recognized Portugal's sovereignty and made peace on 13 February 1668.
Legacy
In the
Basque Autonomous Community
Basque may refer to:
* Basques, an ethnic group of Spain and France
* Basque language, their language
Places
* Basque Country (greater region), the homeland of the Basque people with parts in both Spain and France
* Basque Country (autonomous com ...
of Spain, the
Valdegovía adopted the royal coat of arms during the Iberian Union period with the
Navarre arms and the
Portuguese arms added on the honor point.
The Spanish city of
Ceuta
Ceuta (, , ; ) is an Autonomous communities of Spain#Autonomous cities, autonomous city of Spain on the North African coast. Bordered by Morocco, it lies along the boundary between the Mediterranean Sea and the Atlantic Ocean. Ceuta is one of th ...
was a part of the Portuguese Empire until the end of the Iberian Union in 1640, after which it decided to remain with Spain. Thus the coat of arms of the city is nearly identical to that of the Kingdom of Portugal, showing the seven castles over the red bordure and the five escutcheons with silver roundels, and the gyronny field of its flag is identical to that of the flag of
Lisbon
Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...
, to commemorate the fact of that flag having been the first raised in Ceuta by the Portuguese when they
conquered the city in 1415.
See also
*
History of Portugal
The history of Portugal can be traced from circa 400,000 years ago, when the region of present-day Portugal was inhabited by ''Homo heidelbergensis''.
The Roman conquest of the Iberian Peninsula, which lasted almost two centuries, led to the es ...
*
History of Spain
The history of Spain dates to contact between the List of the Pre-Roman peoples of the Iberian Peninsula, pre-Roman peoples of the Mediterranean Sea, Mediterranean coast of the Iberian Peninsula with the Greeks and Phoenicians. During Classical A ...
*
Iberian Peninsula
The Iberian Peninsula ( ), also known as Iberia, is a peninsula in south-western Europe. Mostly separated from the rest of the European landmass by the Pyrenees, it includes the territories of peninsular Spain and Continental Portugal, comprisin ...
*
Union of the Crowns
The Union of the Crowns (; ) was the accession of James VI of Scotland to the throne of the Kingdom of England as James I and the practical unification of some functions (such as overseas diplomacy) of the two separate realms under a single ...
*
Black Legend (Spain)
References
Citations
Sources
Leslie Bethell, ''The Cambridge history of Latin America'', Cambridge University Press (1984)Jean-Frédéric Schaub, ''Le Portugal Au Temps Du Conde-duc D'olivares'', Casa de Velázquez (2001)Luis Suárez Fernández, José Andrés Gallego, ''La Crisis de la hegemonía española, siglo XVII'', Ediciones Rialp (1986)
{{Coord missing, Europe
States and territories established in 1580
States and territories disestablished in 1640
1580 establishments in Europe
1640 disestablishments in Europe
16th century in Spain
16th century in Portugal
17th century in Spain
17th century in Portugal
Personal unions
Former monarchies
Spanish Empire in Europe