Died in 1742

Jan 1 Peregrine Bertie 2nd Duke of Ancaster and Kesteven a British nobleman and statesman.
Jan 14 Edmond Halley best known for computing the orbit of the eponymous Halley's Comet. He was the second Astronomer Royal in Britain, succeeding John Flamsteed
Feb 8 Philipp Ludwig Wenzel von Sinzendorf an Austrian diplomat and Court Chancellor.
Feb 22 Charles Rivington a British publisher.
Feb 28 Willem 's Gravesande a Dutch lawyer and natural philosopher, chiefly remembered for developing experimental demonstrations of the laws of classical mechanics. As professor of mathematics, astronomy, and philosophy at Leiden University, he helped to propagate Isaac Newton's ideas in Continental Europe
Mar 23 Jean-Baptiste Dubos a French author.
Apr 2 James Douglas (physician) a Scottish physician and anatomist, and Physician Extraordinary to Queen Caroline.
Apr 10 Wilhelmine Amalia of Brunswick-Lüneburg Holy Roman Empress, Queen of the Germans, Queen of Hungary, Queen of Bohemia, Archduchess consort of Austria etc. as the spouse of Joseph I, Holy Roman Emperor.
Apr 16 Stefano Benedetto Pallavicino an Italian poet and opera librettist. He was the son of the composer Carlo Pallavicino
Apr 17 Arvid Horn a Swedish soldier, diplomat and politician. He served twice as President of the Privy Council Chancellery and was one of the leading figures of the Swedish Age of Liberty
May 21 Lars Roberg a Swedish physician.
May 26 Pylyp Orlyk a Zaporozhian Cossack starshyna, Hetman in exile, diplomat, secretary and close associate of Hetman Ivan Mazepa.
Jun 16 Louise Élisabeth d'Orléans Queen consort of Spain as the wife of King Louis I.
Jun 18 John Aislabie a British politician, notable for his involvement in the South Sea Bubble and for creating the water garden at Studley Royal.
Jun 28 Jan Josef Ignác Brentner a Czech composer of the Baroque era.
Jul 1 Bohuslav Matěj Černohorský a Czech composer, organist and teacher of the baroque era. He wrote among other works motets, other choral works and organ solo works
Jul 4 Luigi Guido Grandi Dom Guido Grandi, O.S.B. Cam., was an Italian monk, priest, philosopher, mathematician, and engineer
Jul 9 John Oldmixon an English historian.
Jul 12 Evaristo Felice Dall'Abaco an Italian composer and cellist.
Jul 14 Richard Bentley an English classical scholar, critic, and theologian. He was Master of Trinity College, Cambridge
Jul 18 Abraham Sharp an English mathematician and astronomer.
Jul 19 William Somervile an English poet.
Jul 30 Nicholas Roosevelt (1658–1742) an early member of the Roosevelt family and a prominent Dutch-American citizen of New Amsterdam , and was the 4th great-grand father to Franklin Delano Roosevelt. He was the first Roosevelt to hold an elected office in North America, as an alderman
Aug 25 Carlos Seixas a Portuguese composer, the son of the cathedral organist, Francisco Vaz and Marcelina Nunes.
Sep 4 Countess Sophia Albertine of Erbach-Erbach Countess of erbach-erbach by birth and by marriage Duchess of Saxe-Hildburghausen. From 1724 to 1728, she was Regent of this Thuringian state
Sep 24 Johann Matthias Hase a German mathematician, astronomer, and cartographer.
Sep 27 Hugh Boulter the Church of Ireland Archbishop of Armagh, the Primate of All Ireland, from 1724 until his death. He also served as the chaplain to George I from 1719
Sep 28 Jean Baptiste Massillon Cong. Orat. , was a French Catholic bishop and famous preacher, who served as Bishop of Clermont from 1717 until his death
Oct 9 Alexander von Dönhoff a Prussian lieutenant-general and confidant of King Friedrich Wilhelm I.
Oct 30 Magdalena Wilhelmine of Württemberg a margravine of Baden. She had a place in the regency during the minority of her grandson in 1738-42
Nov 7 John Augustus Prince of Anhalt-Zerbst a German prince of the House of Ascania and ruler of the principality of Anhalt-Zerbst.
Nov 12 Friedrich Hoffmann a German physician and chemist.
Nov 20 Melchior de Polignac a French diplomat, Roman Catholic cardinal and neo-Latin poet.
Nov 29 Francis Fasani Anthony Fasani, O.F.M. Conv. was an Italian friar of the Order of Conventual Friars Minor who has been declared a saint by the Catholic Church
Dec 3 Claude Aubriet a French illustrator and botanical artist.
Dec 17 François-Joseph de Beaupoil de Sainte-Aulaire a French poet and army officer.
Dec 31 Charles III Philip Elector Palatine a ruler from the house of Wittelsbach. He was Elector Palatine, Count of Palatinate-Neuburg, and Duke of Jülich and Berg from 1716 to 1742. Until 1728 Charles III Philip was also Count of Megen