 Isabeau 's uncle , Duke Frederick of Bavaria @-@ Landshut , suggested in 1383 that she be considered as a bride to King Charles VI of France . The match was proposed again at the lavish Burgundian double wedding in Cambrai in April 1385 — John the Fearless and his sister Margaret of Burgundy married Margaret and William of Bavaria @-@ Straubing respectively . Charles , then 17 , rode in the tourneys at the wedding . He was an attractive , physically fit young man , who enjoyed jousting and hunting and was excited to be married . 
