Sophia Eudokia Laskarina Princess of Nicaea (1210–1247) Parents Theodore I Laskaris Anna Komnene Angelina Children Eudokia de Cayeux Siblings Maria Laskarina Irene Laskarina Nicholas Laskaris Constantin Laskaris Theodora Angelina Partners Anseau de Cayeux, Regent of Latin Empire of Constantinople Frederick II, Duke of Austria
