Father of Dame Laudine, Yvain’s wife, in Chrétien’s Yvain. The Middle-English Ywain and Gawain, he is called the Duke of Landuit.

Chrétien’s version may refer to Lothian in Scotland and also tells us that a lay was sung of Duke Laudunet; it apparently has not survived.

Yvain, or Le Chevalier au Lion | Chrétien de Troyes, late 12th century
Ivens Saga | 13th century
Ywain and Gawain | 1310–1340