Tiebaut
The ruler of Tintagel in Chrétien de Troyes’s Perceval. He may be identical with Chrétien’s Thiebaut. Tiebaut raised Sir Meliant of Lis, who fought against Tiebaut for Tiebaut’s daughter.
Tiebaut, a common name at the time of Chrétien’s writing, appears in Ulrich’s Lanzelet as Tybalt. Wolfram calls him Lyppaut, and Heinrich von dem Türlin calls him Leigamar.