(Sir), of Wales. A knight of the Round Table, son of Sir Pellinore, and brother of Sir Percival. He had an amour with his own aunt, the wife of King Lote. Strange that of all the famous knights of the Round Table, Sir Caradoc and Sir Galahad were the only ones who were continent.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894