- Apr 12 Lyman Hall, American physician and signer (Declaration of Independence), born in Wallingford, Connecticut (d. 1790)
Immanuel Kant (1724-1804)
Apr 22 German philosopher (Critique of Pure Reason), born in Königsberg, East Prussia
- Apr 27 Colonel Thomas Gardner, American heroic political figure and soldier, born in Cambridge, Massachusetts (d. 1775)
- Apr 27 Ferdinand Philipp Joseph Lobkowitz, Czech composer, born in Prague, Czech Republic (d. 1784)