Amr / Amhar (Mabinogion) / Anir

   According to Nennius, Arthur had a son named Amr, though all he says of him is that Arthur killed him. Nennius says that Arthur killed him at Archenfield and that he was buried under a mound called Licat Anir. Nennius claims to have visited the grave, which had the strange property of changing size, a property he says he personally checked out and verified.