Mary married John Of ENGLAND in Oct 1334. John (son of Edward II King Of ENGLAND and Isabella Of FRANCE) was born on 25 Aug 1316 in Elthem Palace, Kent, England; died on 13 Sep 1336 in Perth in Scotland; was buried in Westminster Abbey. [Group Sheet] [Family Chart]
Ferdinand married Costanza Of PORTUGAL. Costanza (daughter of Denis King Of PORTUGAL and Isabel St. Elizabeth Of ARAGON) was born on 03 Jan 1290; died on 18 Nov 1313. [Group Sheet] [Family Chart]