Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Rudolph (1320 26 August 1346 in the Battle of Crécy), called the Valiant (le Vaillant), was the duke of Lorraine from 1329 to his death. He was the son and successor of Frederick IV and Elisabeth, daughter of Albert I of Germany, a Habsburg, whence his name. Though he was but nine years of age when his father died and he succeeded to the duchy under the regency of his mother (until 1334), he was a warrior prince, taking part in four separate wars in Lorraine, France, Brittany, and Iberia. In 1337, Count Henry IV of Bar refused to do homage for a few seignories he held of the duke. Rudolph was forced to devastate Pont-à-Mousson and its environs. In a series of reprisals, Henry ravaged the west of Lorraine and Rudolph attacked the Barrois.