
Francesco I Sforza (; 23 July 1401 – 8 March 1466) was an Italian
condottiero
Condottieri (; singular: ''condottiero'' or ''condottiere'') were Italian military leaders active during the Middle Ages and the early modern period. The term originally referred specifically to commanders of mercenary companies, derived from the ...
who founded the
Sforza
The House of Sforza () was a ruling family of Renaissance Italy, based in Milan. Sforza rule began with the family's acquisition of the Duchy of Milan following the extinction of the Visconti of Milan, Visconti family in the mid-15th century and ...
dynasty in the
duchy of Milan
The Duchy of Milan (; ) was a state in Northern Italy, created in 1395 by Gian Galeazzo Visconti, then the lord of Milan, and a member of the important Visconti of Milan, Visconti family, which had been ruling the city since 1277. At that time, ...
, ruling as its (fourth)
duke
Duke is a male title either of a monarch ruling over a duchy, or of a member of Royal family, royalty, or nobility. As rulers, dukes are ranked below emperors, kings, grand princes, grand dukes, and above sovereign princes. As royalty or nobi ...
from 1450 until his death.
In the 1420s, he participated in the
War of L'Aquila
The War of L'Aquila (Italian: ''Guerra dell'Aquila'') was a conflict in 15th-century Italy. It started in 1423 as a personal conflict against the condottiero Braccio da Montone and the city of L'Aquila in Abruzzo, but later turned into a national ...
and in the 1430s fought for the
Papal States
The Papal States ( ; ; ), officially the State of the Church, were a conglomeration of territories on the Italian peninsula under the direct sovereign rule of the pope from 756 to 1870. They were among the major states of Italy from the 8th c ...
and Milan against
Venice
Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
. Once the war between Milan and Venice ended in 1441 under
mediation
Mediation is a structured, voluntary process for resolving disputes, facilitated by a neutral third party known as the mediator. It is a structured, interactive process where an independent third party, the mediator, assists disputing parties ...
by Sforza, he successfully invaded southern Italy alongside
René of Anjou
René of Anjou (; ; 16 January 1409 – 10 July 1480) was Duke of Anjou and Count of Provence from 1434 to 1480, who also reigned as King of Naples from 1435 to 1442 (then Aragonese conquest of Naples, deposed). Having spent his last years in Aix ...
, pretender to the throne of Naples, and after that returned to
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
. He was instrumental in the
Treaty of Lodi
The Treaty of Lodi, or Peace of Lodi, was a peace agreement to put an end to the Wars in Lombardy between the Venetian Republic and the Duchy of Milan, signed in the city of Lodi, Lombardy, Lodi on 9 April 1454.
The historical relevance of the ...
(1454) which ensured peace in the Italian realms for a time by ensuring a strategic balance of power. He died in 1466 and was succeeded as duke by his son,
Galeazzo Maria Sforza
Galeazzo Maria Sforza (24 January 1444 – 26 December 1476) was the fifth Duke of Milan from 1466 until 1476.
He was born to Francesco Sforza, a popular condottiero and ally of Cosimo de' Medici who would gain the Duchy of Milan in 1450 ...
. While Sforza was recognized as duke of Milan, his son
Ludovico would be the first to have formal investiture under the
Holy Roman Empire
The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...
by
Maximilian I in 1494.
Biography
Early life
Francesco Sforza was born in
Cigoli
Lodovico or Ludovico Cardi (21 September 1559 – 8 June 1613), also known as Cigoli, was an Italian painter and architect of the late Mannerist and early Baroque period, trained and active in his early career in Florence, and spending the last ...
, near
San Miniato
San Miniato is a town and ''comune'' in the province of Pisa, in the region of Tuscany, Italy.
San Miniato sits at a historically strategic location atop three small hills where it dominates the lower Arno valley, between the valleys of the E ...
, Tuscany, one of the seven illegitimate sons of the
condottiero
Condottieri (; singular: ''condottiero'' or ''condottiere'') were Italian military leaders active during the Middle Ages and the early modern period. The term originally referred specifically to commanders of mercenary companies, derived from the ...
Muzio Sforza and Lucia de Martini. He was the brother of
Alessandro Sforza
Alessandro Sforza (21 October 1409 – 3 April 1473) was an Italian condottiero and lord of Pesaro, the first of the Pesaro line of the Sforza family.
Biography
He was born in Cotignola in 1409, an illegitimate son of the famous condottier ...
. He spent his childhood in
Tricarico (in the modern
Basilicata
Basilicata (, ; ), also known by its ancient name Lucania (, , ), is an administrative region in Southern Italy, bordering on Campania to the west, Apulia to the north and east, and Calabria to the south. It has two coastlines: a 30-kilometr ...
), the marquisate of which he was granted in 1412 by
King Ladislaus of Naples. In 1418, he married
Polissena Ruffo, a Calabrese noblewoman.
From 1419, he fought alongside his father, soon gaining fame for being able to bend metal bars with his bare hands. He later proved himself to be an expert tactician and a very skilled field commander. After the death of his father during the
War of L'Aquila
The War of L'Aquila (Italian: ''Guerra dell'Aquila'') was a conflict in 15th-century Italy. It started in 1423 as a personal conflict against the condottiero Braccio da Montone and the city of L'Aquila in Abruzzo, but later turned into a national ...
, he participated in
Braccio da Montone's final defeat in that campaign; he fought subsequently for the Neapolitan army and then for
Pope Martin V
Pope Martin V (; ; January/February 1369 – 20 February 1431), born Oddone Colonna, was the head of the Catholic Church and ruler of the Papal States from 11 November 1417 to his death in February 1431. His election effectively ended the We ...
and the
Duke of Milan
Milan was ruled by dukes from the 13th century to 1814, after which it was incorporated into the Kingdom of Lombardy–Venetia by the Congress of Vienna.
List of dukes of Milan House of Visconti
In 1395, Gian Galeazzo Visconti was titled Duke ...
,
Filippo Maria Visconti
Filippo Maria Visconti (3 September 1392 – 13 August 1447) was the duke of Duchy of Milan, Milan from 1412 to 1447. Reports stated that he was "paranoid", but "shrewd as a ruler." He went to war in the 1420s with Romagna, Republic of Florenc ...
. After some successes, he fell in disgrace and was sent to the castle of
Mortara as a prisoner. He regained his status after leading an expedition against
Lucca
Città di Lucca ( ; ) is a city and ''comune'' in Tuscany, Central Italy, on the Serchio River, in a fertile plain near the Ligurian Sea. The city has a population of about 89,000, while its Province of Lucca, province has a population of 383,9 ...
.
In 1431, after fighting again for the
Papal States
The Papal States ( ; ; ), officially the State of the Church, were a conglomeration of territories on the Italian peninsula under the direct sovereign rule of the pope from 756 to 1870. They were among the major states of Italy from the 8th c ...
, he led the Milanese army against
Venice
Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
; the following year the duke's daughter,
Bianca Maria, was betrothed to him. Despite these moves, the wary Filippo Maria never ceased to be distrustful of Sforza. The allegiance of mercenary leaders was dependent, of course, on pay; in 1433–1435, Sforza led the Milanese attack on the Papal States, but when he conquered
Ancona
Ancona (, also ; ) is a city and a seaport in the Marche region of central Italy, with a population of around 101,997 . Ancona is the capital of the province of Ancona, homonymous province and of the region. The city is located northeast of Ro ...
, in
Marche
Marche ( ; ), in English sometimes referred to as the Marches ( ) from the Italian name of the region (Le Marche), is one of the Regions of Italy, twenty regions of Italy. The region is located in the Central Italy, central area of the country, ...
, he changed sides, obtaining the title of vicar of the city directly from
Pope Eugene IV
Pope Eugene IV (; ; 1383 – 23 February 1447), born Gabriele Condulmer, was head of the Catholic Church and ruler of the Papal States from 11 March 1431 to his death, in February 1447. Condulmer was a Republic of Venice, Venetian, and a nephew ...
. In 1436–39, he served variously both in
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
and Venice.
In 1440, his fiefs in the
Kingdom of Naples
The Kingdom of Naples (; ; ), officially the Kingdom of Sicily, was a state that ruled the part of the Italian Peninsula south of the Papal States between 1282 and 1816. It was established by the War of the Sicilian Vespers (1282–1302). Until ...
were occupied by
King Alfonso I, and, to recover the situation, Sforza reconciled himself with Filippo Visconti. On 25 October 1441, in
Cremona
Cremona ( , , ; ; ) is a city and (municipality) in northern Italy, situated in Lombardy, on the left bank of the Po (river), Po river in the middle of the Po Valley. It is the capital of the province of Cremona and the seat of the local city a ...
, he could finally marry Bianca Maria as part of the
agreements
Agreement may refer to:
Agreements between people and organizations
* Gentlemen's agreement, not enforceable by law
* Trade agreement, between countries
* Consensus (disambiguation), a decision-making process
* Contract, enforceable in a court of ...
that ended the war between Milan and Venice. The following year, he allied with
René of Anjou
René of Anjou (; ; 16 January 1409 – 10 July 1480) was Duke of Anjou and Count of Provence from 1434 to 1480, who also reigned as King of Naples from 1435 to 1442 (then Aragonese conquest of Naples, deposed). Having spent his last years in Aix ...
, pretender to the throne of Naples, and marched against southern Italy. After some initial setbacks, he defeated the Neapolitan commander Niccolò Piccinino, who had invaded his possessions in Romagna and Marche, through the help of
Sigismondo Pandolfo Malatesta
Sigismondo Pandolfo Malatesta (19 June 1417 – 7 October 1468) was an Italian condottiero and nobleman, a member of the House of Malatesta and lord of Rimini and Fano from 1432. He was widely considered by his contemporaries as one of the mos ...
(who had married his daughter
Polissena) and the Venetians, and could return to Milan.
Sforza later found himself warring against
Francesco Piccinino (whom he defeated at the Battle of Montolmo in 1444) and, later, the alliance of Visconti, Eugene IV, and Malatesta, who had allegedly murdered Polissena. With the help of Venice, Sforza was again victorious and, in exchange for abandoning the Venetians, received the title of ''capitano generale'' (commander-in-chief) of the Duchy of Milan's armies.
Duke of Milan
After Filippo Maria Visconti, duke of Milan, died without a male heir in 1447, fighting broke out to restore the so-called
Ambrosian Republic. The name Ambrosian Republic takes its name from
St. Ambrose, the
patron saint
A patron saint, patroness saint, patron hallow or heavenly protector is a saint who in Catholicism, Anglicanism, Eastern Orthodoxy or Oriental Orthodoxy is regarded as the heavenly advocate of a nation, place, craft, activity, class, clan, fa ...
of Milan.
Agnese del Maino, his wife's mother, convinced the condottiero who held
Pavia
Pavia ( , ; ; ; ; ) is a town and comune of south-western Lombardy, in Northern Italy, south of Milan on the lower Ticino (river), Ticino near its confluence with the Po (river), Po. It has a population of c. 73,086.
The city was a major polit ...
to restore it to him.
He also received the seigniory of other cities of the duchy, including
Lodi, and started to carefully plan the conquest of the ephemeral republic, allying with
William VIII of Montferrat and (again) Venice. In 1450, after years of famine, riots raged in the streets of Milan and the city's senate decided to entrust him with the duchy. Sforza entered the city as duke on 26 February. It was the first time that such a title was handed over by a lay institution. While the other Italian states gradually recognized Sforza as the legitimate Duke of Milan, he was never able to obtain official investiture from the
Holy Roman Emperor
The Holy Roman Emperor, originally and officially the Emperor of the Romans (disambiguation), Emperor of the Romans (; ) during the Middle Ages, and also known as the Roman-German Emperor since the early modern period (; ), was the ruler and h ...
. That did not come to the Sforza Dukes until 1494, when
Emperor Maximilian formally invested Francesco's son,
Ludovico, as duke of Milan.
Under his rule (which was moderate and skilful), Sforza modernised the city and duchy. He created an efficient system of taxation that generated enormous revenues for the government, his court became a centre of
Renaissance
The Renaissance ( , ) is a Periodization, period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and sur ...
learning and culture, and the people of Milan grew to love him. In Milan, he founded the
Ospedale Maggiore
The Policlinico of Milan (), also known as Ospedale Maggiore di Milano or Ca' Granda Ospedale Maggiore Policlinico, is the public district general hospital in Milan. It is one of the oldest hospitals in Italy, founded by Francesco I of the Ho ...
, restored the
Palazzo ducale, and had the Naviglio d'Adda, a channel connecting with the
River Adda, built.
During Sforza's reign, Florence was under the command of
Cosimo de' Medici
Cosimo di Giovanni de' Medici (27 September 1389 – 1 August 1464) was an Italian banker and politician who established the House of Medici, Medici family as effective rulers of Florence during much of the Italian Renaissance. His power derive ...
and the two rulers became close friends. This friendship eventually manifested in first the
Peace of Lodi and then the
Italian League, a multi-polar defensive alliance of Italian states that succeeded in stabilising almost all of Italy for its duration. After the peace, Sforza renounced part of the conquests in eastern Lombardy obtained by his condottieri
Bartolomeo Colleoni,
Ludovico Gonzaga, and
Roberto Sanseverino d'Aragona
Roberto Sanseverino d'Aragona (1418 – 10 August 1487) was an Italian condottiero, count of Colorno from 1458 to 1477 and count of Caiazzo from 1460 until his death in 1487. A highly esteemed man of arms, and a veteran of numerous battles, he was ...
after 1451. As
King Alfonso I of Naples was among the signatories of the treaty, Sforza also abandoned his long support of the
Angevin pretenders to Naples. He also aimed to conquer
Genoa
Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...
, then an Angevin possession; when a revolt broke out there in 1461, he had Spinetta Campofregoso elected as
Doge
Doge, DoGE or DOGE may refer to:
Internet culture
* Doge (meme), an Internet meme primarily associated with the Shiba Inu dog breed
** Dogecoin, a cryptocurrency named after the meme
** Kabosu (dog), the dog portrayed in the original Doge image ...
, as his puppet. Sforza occupied Genoa and
Savona
Savona (; ) is a seaport and (municipality) in the west part of the northern Italian region of Liguria, and the capital of the Province of Savona. Facing the Ligurian Sea, Savona is the main center of the Riviera di Ponente (the western se ...
in 1464.
Sforza was the first European ruler to follow a foreign policy based on the concept of the
balance of power, and the first native Italian ruler to conduct extensive diplomacy outside the peninsula to counter the power of threatening states such as France. Sforza's policies succeeded in keeping foreign powers from dominating Italian politics for the rest of the century.
Edward IV of England
Edward IV (28 April 1442 – 9 April 1483) was King of England from 4 March 1461 to 3 October 1470, then again from 11 April 1471 until his death in 1483. He was a central figure in the Wars of the Roses, a series of civil wars in England ...
sought to strengthen friendly relations with Sforza and accordingly offered him membership in the prestigious
Order of the Garter
The Most Noble Order of the Garter is an order of chivalry founded by Edward III of England in 1348. The most senior order of knighthood in the Orders, decorations, and medals of the United Kingdom, British honours system, it is outranked in ...
. He accepted and became a knight of the Garter in 1463.
Sforza suffered from
hydropsy and
gout
Gout ( ) is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and Joint effusion, swollen joint, caused by the deposition of needle-like crystals of uric acid known as monosodium urate crysta ...
. In 1462, rumours spread that he was dead and a riot exploded in Milan. He however survived for four more years, finally dying in March 1466. He was succeeded as duke by his son,
Galeazzo Maria Sforza
Galeazzo Maria Sforza (24 January 1444 – 26 December 1476) was the fifth Duke of Milan from 1466 until 1476.
He was born to Francesco Sforza, a popular condottiero and ally of Cosimo de' Medici who would gain the Duchy of Milan in 1450 ...
.
Francesco's successor Ludovico commissioned
Leonardo da Vinci
Leonardo di ser Piero da Vinci (15 April 1452 - 2 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested o ...
to design an
equestrian statue
An equestrian statue is a statue of a rider mounted on a horse, from the Latin ''eques'', meaning 'knight', deriving from ''equus'', meaning 'horse'. A statue of a riderless horse is strictly an equine statue. A full-sized equestrian statue is a ...
as part of a monument to Francesco I Sforza. A clay model of a horse which was to be used as part of the design was completed by Leonardo in 1492—but the statue was never built. In 1999 the horse alone was cast from Leonardo's original designs in bronze and placed in Milan outside the racetrack of Ippodromo del Galoppo.
Issue
Francesco Sforza with his first wife
Polissena Ruffo (dead in 1420), married in 1418, had:
* Antonia Polissena (1420–1420). Her mother died in childbirth and she died shortly after.
By his second wife, Maria Caldora, daughter of
Giacomo Caldora, married on April 1424, he had no issue. The marriage was dissolved at 1430 end by
Pope Martin V
Pope Martin V (; ; January/February 1369 – 20 February 1431), born Oddone Colonna, was the head of the Catholic Church and ruler of the Papal States from 11 November 1417 to his death in February 1431. His election effectively ended the We ...
.
Francesco Sforza with his third wife Bianca Maria Visconti had:
*
Galeazzo Maria (24 January 1444 — 26 December 1476), Duke of Milan from 1466 to 1476.
*
Ippolita Maria (18 April 1446 — 20 August 1484), wife of
Alfonso II of Naples
Alfonso II (4 November 1448 – 18 December 1495) was Duke of Calabria and ruled as King of Naples from 25 January 1494 to 23 January 1495. He was a soldier and a patron of Renaissance architecture and the arts.
Heir to his father Fe ...
and mother of
Isabella of Aragon, who was to marry Galeazzo's heir.
* Child died at birth;
* Filippo Maria (12 December 1449 — 1492), Count of Corsica. Married to his cousin Costanza Sforza, they had a daughter, Bona.
*
Sforza Maria (18 August 1451 — 29 July 1479), Duke of Bari from 1464 to 1479. Betrothed (possibly married) to
Eleanor of Naples
* Francesco Galeazzo Maria (5 August 1453 — died young).
*
Ludovico Maria (3 August 1452 — 27 May 1508), Duke of Bari from 1479 to 1494 and Duke of Milan from 1494 to 1499.
*
Ascanio Maria (3 March 1455 — 28 May 1505), Abbot of Chiaraville, Bishop of Pavia, Cremona, Pesaro, and Novara and Cardinal.
* Elisabetta Maria (10 June 1456 — 1473), wife of
Guglielmo VIII Paleologo, Margrave of Montferrat
* Ottaviano Maria (30 April 1458 — 1477), Count of Lugano, who drowned while escaping arrest.
Francesco Sforza also had an unspecified number (possibly 35) of illegitimate children.
Giovanna d'Acquapendente, who was Francesco's official lover between the death of his first wife and his marriage to Bianca Maria Visconti, gave him 7 children including:
* Polissena (b. 1422) Died young
* Isolea or Isotta (b.1427 – d. 1485/87) married
Andreo Matteo Acquaviva and after his death Giovanni Mauruzi
*
Polisena Sforza (1428 – June 1, 1449) married
Sigismondo Pandolfo Malatesta
Sigismondo Pandolfo Malatesta (19 June 1417 – 7 October 1468) was an Italian condottiero and nobleman, a member of the House of Malatesta and lord of Rimini and Fano from 1432. He was widely considered by his contemporaries as one of the mos ...
*
Sforza Secondo Sforza (1433–1492 or 1493),
count of Borgonuovo
Borgonovo Val Tidone (, or ) is a ''comune'' (municipality) in the province of Piacenza in the Italian region Emilia-Romagna, located about northwest of Bologna and about west of Piacenza.
Borgonovo Val Tidone borders the following municipalit ...
; married Antonia dal Verme daughter of
Luigi dal Verme.
* Drusiana Sforza (30 September 1437 – 29 June 1474), married
Jacopo Piccinino
Jacopo Piccinino (1423 – July 1465) was an Italian condottiero and nobleman, the son of military leader Niccolò Piccinino. A native of Perugia, he was the feudal lord of Sulmona, Sterpeto, Assisi, Chieti, Città Sant'Angelo, Francavilla al M ...
.
with Brigida Caimi (daughter of Franchino Caimi):
*
Giovanni Maria (Milan, 1461 – Pavia, 1510 or 1513), archbishop of Genoa from 1498
with Elisabetta de Prata:
* Giulio married Margherita Grassi, daughter of Tommaso Grassi, Patrizio di Milano
with Perpetua di Varese
* Polidoro
(b.1442 – d. 1475) married Antonia Malaspina, illegitimate daughter of Spinetta of Verrucola,
with Elisabetta da Robecco( also known as Elisabetta delle Grazie):
* Leonardo
* Julius
By unknown mothers:
* Tristano Sforza (1424–1477) married Beatrice d´Este, an illegitimate daughter of
Niccolò III d'Este,marquess of Ferrarra
* Bona Francesca (d. 1513)
* Bianca Maria
* Fiordelisa Maria married Guidaccio Manfredi.
* Bartolomeo
* Antonio
* Paolo (b.1454)
* Lucia
(b.? – d.?became a nun
* Taddea
(b.? – d.?became a nun
* Clara
(b.? – d.?) became a nun
* Elisa
* Griselda (b.1452–1495)
* Beatrice (b.1455–1493)
* Ottaviana (b.1461–1513)
References
Sources
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{{DEFAULTSORT:Sforza, Francesco 01
1401 births
1466 deaths
15th-century dukes of Milan
15th-century condottieri
Burials at Milan Cathedral
Francesco 1
Knights of the Garter
People from the Province of Pisa
Republic of Venice generals