He threw a tournament during the Grail Quest, offering his daughter to any man who could defeat him and a hundred knights. Lancelot and Tristan won the tournament and gave Sebio’s daughter to Richevie Ventura, the son of a man who had lodged them.
Sebio died of a wound given to him by Lancelot.
Source
La Tavola Ritonda | 1325–1350
