Historical Events Apr 11 English premier John Dudley appointed Duke of Northumberland Apr 20 John Dudley becomes Earl Marshal of England Famous Deaths Apr 6 Joachim Vadianus, Swiss physician/mayor of Sankt Gallen, dies at 66 Apr 21 Oda Nobuhide, Japanese warlord (b. 1510) 1550 History by Year 1552 Famous People by Cause of Death Assassination Drug Overdose Gunshot Wound Murder Plane Crash Suicide