officer and colonial governor of Newfoundland (b. c. 1715) February 7 – Antoine Polier, Swiss adventurer (b. 1741) February 11 – Carl Michael Bellman, Swedish poet (b. 1740) February 14 – Samuel Cook Silliman, member of the Connecticut House of Representatives from Norwalk (b. 1741) February 27 Tanikaze Kajinosuke, Japanese sumo wrestler (b. 1750) Richard Clarke, Massachusetts merchant (b. 1711) March 4 – John Collins, third Governor of the U (b. 1717) March 5 – Josef Reicha (b. 1752) March 9 – John Armstrong, Sr., American civil engineer and major general during the Revolutionary War (b. 1717) March 15 – Louisa Catharina Harkort, German ironmaster (b. 1718) March 18 – Jonathan Buck, Bucksport (b. 1719) March 21 Giovanni Arduino, Italian geologist (b. 1714) Honoré III, Prince of Monaco (b. 1720) April–June April 1 – Charles II August, Duke of Zweibrücken (b. 1746) April 6 – George Collier, officer of the Royal Navy who saw service during the Seven Years' War (b. 1738) April 12 – Johann Kaspar Basselet von La Rosée, Bavarian general (b. 1710) April 30 – Jean-Jacques Barthélemy, French writer and numismatist (b. 1716) May 2 – Increase Moseley, American politician (b. 1712) May 6 – Pieter Boddaert, Dutch physician and naturalist (b. 1730) May 7 – Antoine Quentin Fouquier-Tinville, French revolutionary leader (executed) (b. 1746) May 11 – Joachim Edler von Popper, Austrian banker (b. 1722) May 12 – Ezra Stiles, American academic, educator and author (b. 1727) May 17 – Thomas Pelham-Clinton, 3rd Duke of Newcastle, British Army general (b. 1752) May 18 – Robert Rogers, American colonial frontiersman (b. 1731) May 19 Josiah Bartlett, signer of the United States Declaration of Independence (b. 1729) James Boswell, Scottish author (b. 1740) May 20 Francesco Paolo Di Blasi, Sicilian jurist (b. 1753) Louis Eugene, Duke of Württemberg, third son of Duke Karl Alexander (b. 1731) May 27 – Thomas-Laurent Bédard, Canadian priest (b. 1747) June 1 – Pierre-Joseph Desault, French anatomist and surgeon (b. 1744) June 8 – King Louis XVII of France (b. 1785) June 13 – Stephen Popham, British politician and solicitor (b. 1745) June 17 – Gilbert Romme, French politician and mathematician (b. 1750) June 18 – Marie Marguerite Bihéron, French anatomist (b. 1719) June 23 – James Craig, Scottish architect (b. 1739) June 24 – William Smellie, Scottish printer and encyclopedist (b. 1740) July–September July 3 Louis-Georges de Bréquigny, French historian (b. 1714)