Mar 16 John Beaufort, 1st Earl of Somerset (b. 1373) May 3 Alexander V [Petros Philargi], Kreta's Pope (1409-10), dies May 18 Rupert, King of Germany (1400-10), dies at 58 May 31 King Martin I of Aragon (b. 1356) Jul 15 Ulrich von Jungingen, German Grand Master of the Teutonic Knights, killed at the Battle of Grunwald (b. 1360) 1409 Famous Deaths by Year 1411 Famous People by Cause of Death Assassination Drug Overdose Gunshot Wound Murder Plane Crash Suicide