May 2 William de Braose, Lord of Abergavenny (b. 1197) Jul 28 Duke Leopold VI of Austria (b. 1176) Sep 24 Alfonso IX, King of León and Galicia (1188-1230), dies at 59 Dec 15 Ottokar I, king of Bohemia (1197-1230), dies Dec 23 Berengaria of Navarre, queen of Richard I of England 1229 Famous Deaths by Year 1231