 Isabeau of Bavaria ( or Isabelle ; also Elisabeth of Bavaria @-@ Ingolstadt ; c . 1370 – 24 September 1435 ) was born into the House of Wittelsbach as the eldest daughter of Duke Stephen III of Bavaria @-@ Ingolstadt and <unk> Visconti of Milan . She became Queen of France when she married King Charles VI in 1385 . At age 15 or 16 , Isabeau was sent to France on approval to the young French king ; the couple wed three days after their first meeting . 
