Son of Sir Erbin, a Knight of Devon, Sir Geraint restored Sir Yniol to his possessions and fell in love with and married Enid, Sir Yniol's beautiful daughter.

Geraint heard Enid bewailing his sloth as a Knight. He was stung with shame and mistakenly believed Enid to be unfaithful to him. He took her on a journey through a series of trials until she convinced him of her constancy. They returned and lived in happiness for the rest of their lives.