Historical Events King Alfonso V Apr 2 Alfonso V succeeds his father as King of Aragon King Alfonso V of Aragon Famous Deaths Apr 2 Ferdinand I the Righteous, King of Aragon and Sicily, dies at 52 Apr 23 Blaise/Blasius of Parma, Italian astrologist, philosopher and algebra scholar, dies 1415 History by Year 1417 Famous People by Cause of Death Assassination Drug Overdose Gunshot Wound Murder Plane Crash Suicide