Lord of Escalot (Astolat) and father of Elaine, Lancelot’s ill-fated admirer, in Malory. He appears unnamed in the Vulgate Lancelot and as Lanval in the Hebrew Melekh Artus. His sons were Tirre and Lavaine.
Just prior to a great tournament at Camelot, Bernard gave lodging to Lancelot and lent him Tirre’s shield to use in the tournament. He later begged Lancelot to marry the love-struck Elaine, but in vain.
Source
Le Morte Darthur | Sir Thomas Malory, 1469-1470