Otto married Beatrice of Swabia Hohenstaufen, Holy Roman Empress and German Queen on 22 Jul 1212 in Nordhausen. Beatrice (daughter of Philip of Swabia Hohenstaufen, Holy Roman Emperor and Irene of Byzantium Angelina) was born in 1198; died on 11 Aug 1212. [Group Sheet] [Family Chart]
Otto married Mary of Brabant after 19 May 1214 in Maastricht. Mary (daughter of Henry I The Courageous, Duke of Brabant and Matilda of Boulogne, Duchess of Brabant) was born about 1191; died after 9 Mar 1260. [Group Sheet] [Family Chart]
Abt 1183 - 1218 (35 years)
