- Mar 31 Anne Hyde, wife of James II of England (b. 1637)
- Jun 6 Stenka/Stepan Razin, Russian Cossack and Boer leader quartered alive (ns. 16 June)
- Jun 16 Stenka Razin, Cossack rebel leader, tortured & executed in Moscow
- Jun 25 Giovanni Riccioli, Italian astronomer (Almagestum Novum), dies at 73
- Jul 14 Méric Casaubon, French-English classical scholar (1st to translate Marcus Aurelius into English), dies at 71
- Sep 1 Hugues de Lionne, Marquess de Berny, French ambassador to Rome, dies at 59
- Oct 26 Sir John Gell, 1st Baronet, English politician (b. 1593)
Thomas Fairfax (1612-1671)
Nov 12 Lord Fairfax, English Parliamentary general (Commander-in-Chief of New Model Army during English Civil War), dies at 59
- Dec 28 Johann Friedrich Gronovius, German classical scholar, dies at 60
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning