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Aaron Lopez (born Duarte Lopez; 1731 – May 28, 1782) was a Portuguese-born merchant, slave trader, and philanthropist. Born in
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 ...
into a ''
converso A ''converso'' (; ; feminine form ''conversa''), "convert" (), was a Jew who converted to Catholicism in Spain or Portugal, particularly during the 14th and 15th centuries, or one of their descendants. To safeguard the Old Christian popula ...
'' family, he moved to
British America British America collectively refers to various British colonization of the Americas, colonies of Kingdom of Great Britain, Great Britain and its predecessors states in the Americas prior to the conclusion of the American Revolutionary War in 1 ...
, settling in the
colony of Rhode Island and Providence Plantations The Colony of Rhode Island and Providence Plantations was an English colony on the eastern coast of America, founded in 1636 by Puritan minister Roger Williams after his exile from the Massachusetts Bay Colony. It became a haven for religious d ...
. Through his varied commercial ventures, Lopez became the wealthiest person in
Newport, Rhode Island Newport is a seaside city on Aquidneck Island in Rhode Island, United States. It is located in Narragansett Bay, approximately southeast of Providence, Rhode Island, Providence, south of Fall River, Massachusetts, south of Boston, and nort ...
. In 1761 and 1762, Lopez unsuccessfully sued the colonial government of Rhode Island in an attempt to become a
British subject The term "British subject" has several different meanings depending on the time period. Before 1949, it referred to almost all subjects of the British Empire (including the United Kingdom, Dominions, and colonies, but excluding protectorates ...
.


Early life

Duarte Lopez was born in 1731 in
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 ...
,
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 ...
. He belonged to a family of ''
converso A ''converso'' (; ; feminine form ''conversa''), "convert" (), was a Jew who converted to Catholicism in Spain or Portugal, particularly during the 14th and 15th centuries, or one of their descendants. To safeguard the Old Christian popula ...
s'',
Portuguese Jews Spanish and Portuguese Jews, also called Western Sephardim, Iberian Jews, or Peninsular Jews, are a distinctive sub-group of Sephardic Jews who are largely descended from Jews who lived as New Christians in the Iberian Peninsula during the fe ...
who had converted to
Catholicism The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
, although the family continued to practice Judaism in secret. In 1750 Lopez married a woman named Anna, and within two years she gave birth to a daughter, Catherine. Anna died on May 14, 1762, at age 36. In the summer of 1763, Lopez took Sarah Rivera, the New York born daughter of Jacob Rodriguez Rivera, for a wife. Sarah, 16 years Aaron's junior, would bear him 10 children. Aaron's older brother José had left Portugal years earlier, began to openly practise Judaism, and changed his given name to Moses. Moses was
naturalized Naturalization (or naturalisation) is the legal act or process by which a non-national of a country acquires the nationality of that country after birth. The definition of naturalization by the International Organization for Migration of the ...
in 1740 and granted a license by the
General Assembly A general assembly or general meeting is a meeting of all the members of an organization or shareholders of a company. Specific examples of general assembly include: Churches * General Assembly (presbyterian church), the highest court of presby ...
to make
potash Potash ( ) includes various mined and manufactured salts that contain potassium in water- soluble form.
in 1753, and he became a successful merchant in Newport. In 1752 Duarte and his family moved to Newport, where they too reclaimed their Jewish identities and became Aaron, Abigail, and Sarah.


Merchant and slave trader

Lopez established himself as a shopkeeper in Newport shortly after his arrival. By 1755 he was buying and selling goods throughout Rhode Island and dealing with agents in
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
and
New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...
. One of Lopez's early business interests was the trade in
spermaceti Spermaceti (see also: Sperm oil) is a waxy substance found in the head cavities of the sperm whale (and, in smaller quantities, in the oils of other whales). Spermaceti is created in the spermaceti organ inside the whale's head. This organ may ...
, a coveted wax extracted from
whale oil Whale oil is oil obtained from the blubber of whales. Oil from the bowhead whale was sometimes known as train-oil, which comes from the Dutch word ''traan'' ("tear drop"). Sperm oil, a special kind of oil used in the cavities of sperm whales, ...
used to make elegant candles. Lopez built a candle-making factory in Newport in 1756. By 1760, a dozen competitors had built similar plants in
New England New England is a region consisting of six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York (state), New York to the west and by the ...
. Whalers couldn't supply the factories with enough spermaceti to meet the demand, and the price of whale oil was climbing. In 1761, Lopez joined eight other merchants to form a trust to control the cost and distribution of whale oil. Lopez expanded his trade beyond the North American coastline and by 1757 had major interests in the West Indian trade. He also sent ships to
Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
and the
Canary Islands The Canary Islands (; ) or Canaries are an archipelago in the Atlantic Ocean and the southernmost Autonomous communities of Spain, Autonomous Community of Spain. They are located in the northwest of Africa, with the closest point to the cont ...
. Between 1761 and 1774, Lopez was involved in the
slave trade Slave trade may refer to: * History of slavery - overview of slavery It may also refer to slave trades in specific countries, areas: * Al-Andalus slave trade * Atlantic slave trade ** Brazilian slave trade ** Bristol slave trade ** Danish sl ...
. Historian Eli Faber determined Lopez underwrote 21
slave ship Slave ships were large cargo ships specially built or converted from the 17th to the 19th century for transporting Slavery, slaves. Such ships were also known as "Guineamen" because the trade involved human trafficking to and from the Guinea ( ...
s during a period in which Newport sent a total of 347 slave ships to Africa. By the beginning of the
American Revolution The American Revolution (1765–1783) was a colonial rebellion and war of independence in which the Thirteen Colonies broke from British America, British rule to form the United States of America. The revolution culminated in the American ...
, Lopez owned or controlled 30 vessels, engaged in the European and West Indian trade and in whale fisheries. By the early 1770s, Lopez had become the wealthiest person in Newport; his tax assessment was twice that of any other resident. The reason he was successful was that his business interests were so diverse. He manufactured spermaceti candles, ships, barrels, rum, and chocolate. He had business interests in the production of textiles, clothes, shoes, hats, and bottles.
Ezra Stiles Ezra Stiles ( – May 12, 1795) was an American educator, academic, Congregationalist minister, theologian, and author. He is noted as the seventh president of Yale College (1778–1795) and one of the founders of Brown University. According ...
, the
Congregational Congregationalism (also Congregational Churches or Congregationalist Churches) is a Reformed Christianity, Reformed Christian (Calvinist) tradition of Protestant Christianity in which churches practice Congregationalist polity, congregational ...
minister in Newport and future president of
Yale College Yale College is the undergraduate college of Yale University. Founded in 1701, it is the original school of the university. Although other Yale schools were founded as early as 1810, all of Yale was officially known as Yale College until 1887, ...
, described Lopez as "a merchant of the first eminence" and wrote that the "extent of iscommerce probably assurpassed by no merchant in America". In the mid-1770s, with growing tensions between
Britain Britain most often refers to: * Great Britain, a large island comprising the countries of England, Scotland and Wales * The United Kingdom of Great Britain and Northern Ireland, a sovereign state in Europe comprising Great Britain and the north-eas ...
and its North American colonies, Lopez's fortunes began to decline. The
Continental Association The Continental Association, also known as the Articles of Association or simply the Association, was an agreement among the Thirteen Colonies, American colonies, adopted by the First Continental Congress, which met inside Carpenters' Hall in Phi ...
enforced a boycott against trade with Britain. In October 1775, a
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
force anchored outside Newport's harbour and the population began to evacuate the city. In early 1776 Lopez relocated to
Portsmouth, Rhode Island Portsmouth is a town in Newport County, Rhode Island, United States. The population was 17,871 at the 2020 United States census, 2020 U.S. census. Portsmouth is the second-oldest municipality in Rhode Island, after Providence Plantations, Provide ...
, then to Providence, Boston, and finally to
Leicester Leicester ( ) is a city status in the United Kingdom, city, Unitary authorities of England, unitary authority area, and the county town of Leicestershire in the East Midlands of England. It is the largest city in the East Midlands with a popula ...
,
Massachusetts Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
. Historian Marilyn Kaplan describes Lopez's losses during the American Revolution as "monumental."


Philanthropy

Lopez supported a number of charitable causes in Newport. He purchased books for the Redwood Library and Athenaeum. He contributed lumber to help build the College in the English Colony of Rhode Island and Providence Plantations (which later relocated to Providence and eventually became
Brown University Brown University is a Private university, private Ivy League research university in Providence, Rhode Island, United States. It is the List of colonial colleges, seventh-oldest institution of higher education in the US, founded in 1764 as the ' ...
), and he donated land to establish
Leicester Academy Leicester Academy was a private, state chartered school in Leicester, Massachusetts. History Leicester Academy was founded on March 23, 1784, when the Act of Incorporation for Leicester Academy was passed by the Massachusetts General Court as a ...
in
Leicester, Massachusetts Leicester ( ) is a town in Worcester County, Massachusetts, United States. The population was 11,087 at the 2020 United States census. History What is now Leicester was originally settled by the Nipmuc people and was known by them as ''Towtaid' ...
. It has been said about him that he was 'a man of eminent probity and benevolence whose bounties were widely diffused, not confined to creed or sect.' Lopez was a leading contributor who helped build the
Touro Synagogue The Touro Synagogue is a synagogue built in 1763 in Newport, Rhode Island. The building has been occupied by several different congregations over the years. The current occupant is known as Congregation Ahavath Israel (). As the only surviving s ...
, and he was given the honor of laying one of its
cornerstone A cornerstone (or foundation stone or setting stone) is the first stone set in the construction of a masonry Foundation (engineering), foundation. All other stones will be set in reference to this stone, thus determining the position of the entir ...
s. During the American Revolution, Lopez harbored Jewish refugees in his Leicester home. Referring to those sheltered by Lopez, a friend wrote in jest that "your family at present are in a number only 99 and still there is room for one more".


Citizenship

In 1761, Lopez applied to the Rhode Island Superior Court to become a
naturalized Naturalization (or naturalisation) is the legal act or process by which a non-national of a country acquires the nationality of that country after birth. The definition of naturalization by the International Organization for Migration of the ...
citizen. Under the Naturalization Act 1740, any foreign
Protestant Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...
who had resided in Britain's American colonies for seven years could become a British subject; while
Catholics The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...
were excluded by the law, special provisions were allowed for the religious scruples of both
Quakers Quakers are people who belong to the Religious Society of Friends, a historically Protestantism, Protestant Christian set of Christian denomination, denominations. Members refer to each other as Friends after in the Bible, and originally ...
and Jews. Although he met the conditions set by law, Lopez's request was denied by the colonial government of Rhode Island. Another qualified Jew, Isaac Elizer, was also denied citizenship.Feldberg, p. 12.Smith and Sarna, p. 3. Lopez and Elizer appealed to the
Rhode Island General Assembly The State of Rhode Island General Assembly is the state legislature of the U.S. state of Rhode Island. A bicameral body, it is composed of the lower Rhode Island House of Representatives with 75 representatives, and the upper Rhode Island Se ...
. The
lower house A lower house is the lower chamber of a bicameral legislature, where the other chamber is the upper house. Although styled as "below" the upper house, in many legislatures worldwide, the lower house has come to wield more power or otherwise e ...
approved their request and required that the men return to the Superior Court to take an
oath of allegiance An oath of allegiance is an oath whereby a subject or citizen acknowledges a duty of allegiance and swears loyalty to a monarch or a country. In modern republics, oaths are sworn to the country in general, or to the country's constitution. For ...
, but the terms of their citizenship would be limited: Jews could become citizens of Rhode Island, but they would not be allowed to vote or serve in public office. Lopez and Elizer fared worse in the
upper house An upper house is one of two Legislative chamber, chambers of a bicameralism, bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted p ...
of the legislature. There they were told that the
British Parliament The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body of the United Kingdom, and may also legislate for the Crown Dependencies and the British Overseas Territories. It meets at the Palace of ...
had given the courts, not the legislature, jurisdiction over naturalization. If they wished to become citizens, Lopez and Elizer would have to appeal to the Superior Court.Feldberg, p. 13. The Superior Court heard the pair's appeal on March 11, 1762. Their application was denied a second time. The court reasoned that the 1740 act was intended to increase the population of the colony, and since the colony had grown crowded the law no longer applied. The court also noted that under a 1663 Rhode Island law, only Christians could become citizens. Lopez and Elizer could not become citizens of Rhode Island. Determined to become a citizen, Lopez made inquiries to learn whether he could become naturalized in another colony. In April 1762 he moved temporarily to
Swansea, Massachusetts Swansea is a town in Bristol County in southeastern Massachusetts, United States. It is located at the mouth of the Taunton River, just west of Fall River, south of Boston, and southeast of Providence, Rhode Island. The population was 17,14 ...
. On October 15, 1762, Lopez became a citizen of Massachusetts and then returned to Newport. Historians believe Lopez was the first Jew to become a naturalized citizen of Massachusetts.


Death

On May 28, 1782, while returning with his family from Leicester to Newport, he drowned when his horse and carriage fell into a pond. He was buried in
the Jewish cemetery ''The Jewish Cemetery'' is an oil-on-canvas painting by the Dutch landscape painter Jacob van Ruisdael, now at the Detroit Institute of Arts. ''The Jewish Cemetery'' is an allegorical landscape painting suggesting ideas of hope and death, while ...
in Newport.Marcus and Saperstein, p. 95.


See also

*
History of the Jews in Colonial America The history of the Jews in Colonial America begins upon their arrival as early as the 1650s. The first Jews who came to the New World were Sephardi Jews who arrived in New Amsterdam (New York City). Later major settlements of Jews would occur in th ...
*
Jewish views on slavery Jewish views on slavery are varied both religiously and historically. Judaism's ancient and medieval religious texts contain numerous laws governing the ownership and treatment of slavery, slaves. Texts that contain such regulations include the He ...
* List of Rhode Island slave traders


References


Sources

* * * * * * * * * *


Further reading

* * * * *


External links

* {{DEFAULTSORT:Lopez, Aaron 1731 births 1782 deaths 18th-century American Sephardic Jews 18th-century American slave traders 18th-century Portuguese businesspeople American people of Portuguese-Jewish descent American slave owners Brown University people Businesspeople from Lisbon Deaths by drowning in Rhode Island Deaths by horse-riding accident in the United States Immigrants to the Thirteen Colonies Portuguese emigrants to the United States Portuguese slave owners Portuguese slave traders History of slavery in Rhode Island