query: sister louis vii
supports: Duke Louis VII of Bavaria ( c. 1368 -- 1 May 1447 , Burghausen ) ( German : Ludwig VII. der Bärtige , Herzog von Bayern ) was Duke of Bavaria - Ingolstadt from 1413 until 1443 . He was a son of Stephen III and Taddea Visconti . 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 Taddea 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. Taddea Visconti, Duchess of Bavaria (1351  28 September 1381) was an Italian noblewoman of the Visconti family, the ruling house in Milan from 1277 to 1447. She was the first wife of Stephen III, Duke of Bavaria, and the mother of the French queen Isabeau of Bavaria.
candidates: isabeau of bavaria taddea visconti
answer: isabeau of bavaria