GAIS

1. Gais
   
   A castle set on the Thames.
   
   Sir Trahans, the castellan, and his sons Melians and Drians were all surnamed "li Gais", after the castle. Melians apparently became castellan of the Dolorous Tower.
   
   
   
2. Gais the Large
   Gais le Gros
   
   Perceval’s grandfather in Perlesvaus. He inhabited the Hermits’ Cross. His sons were Alain the Large (Perceval’s father), Gosgallian, Brun Brandalis, Bertoles the Bald, Brandalus of Wales, Elinant of Escavalon, Calobrutus, Meralis, Fortimes of the Crimson Heath, Meliarman of Albanie, Galerian of the White Tower, and Aliban of the Waste City. As Alain’s father, he replaces Bron from the Robert de Boron cycle.