John married Elizabeth Of ENGLAND between 08 and 18 Jan 1297 in Priory Church. Elizabeth (daughter of Edward I "Longshanks"Of ENGLAND and Countess of Ponthieu Eleanor of CASTILE) was born on 07 Aug 1282 in Rhuddlan Castle, Flintshire, Wales; died on 05 May 1316 in Quendon, Essex, England; was buried on 23 May 1316 in Walden Abbey. [Group Sheet] [Family Chart]