John V de Montfort Duke of Brittany

John married Mary, daughter of Edward III Plantagenet , King of England and Philippa of Hainault, in 1361 in Woodstock. (Mary was born on 10 Oct 1344 in Waltham, Near Winchester and died in 1361-1362.)

John next married Joan of Navarre on 11 Sep 1386 in Saille, Near Guerrand. (Joan of Navarre was born about 1370 in Pamplona, died on 9 Jul 1437 in Havering atte, Bower, Essex, England and was buried in Canterbury Cathedral, England.)