/Ferdinand II
        /Alfonso IX of León
       |    \Urraca of Portugal
    /Ferdinand III
   |   |    /Alfonso VIII of Castile
   |    \Berenguela of Castile
   |        \Princess Eleanor Plantagenet
Alfonso X 'the Wise' of Castile
   |        /Frederick I 'Barbarossa' Hohenstauffen
   |    /Philip Hohenstauffen of Swabia
   |   |    \Beatrix of Burgundy
    \Beatrice von Hohenstaufen
       |    /Isaac II Angelus
        \Irene of Byzantium is NOT responsible for the content of the GEDCOMs uploaded through the WorldConnect Program. The creator of each GEDCOM is solely responsible for its content.