Blanche married Peter "The Cruel" I King Of Castile & LEON on 3 Jun 1353 in Valladolid, Valladolid, Spain. Peter (son of Alfonso XI Fernandez Of Castile & LE?N and Maria Affonsez Princess Of PORTUGAL) was born on 30 Aug 1334 in Burgos, Burgos, Spain; died on 22 Mar 1368-1369 in Montiel, Ciudad Real, Spain (Murdered). [Group Sheet] [Family Chart]