Mar 4 Joan of England, Queen Consort of Scotland, wife of Alexander II (b. 1210) Mar 4 Yuri II, Grand Prince of Vladimir, beheaded by his own forces after being caught by Mongolian forces (b. 1189) Mar 19 Henry the Bearded, High Duke of Poland (1232-38), dies 1237 Famous Deaths by Year 1239 Famous People by Cause of Death Assassination Drug Overdose Gunshot Wound Murder Plane Crash Suicide