Jan married Plantagenet, Princess of England Elizabeth 14 Nov 1302. Elizabeth (daughter of Plantagenet, King of England Edward I and Ivrea, Queen of England Eleanor) was born 7 Aug 1282, Rhuddlan Castle, Rhuddlan, Flintshire, Wales; died 5 May 1316, Quendon, Essex, England; was buried 23 May 1316, Walden Abbey, Hertfordshire, England. [Group Sheet]