Variously called Anir, Amir or Amr, the proper Welsh form is Amhar. He was a little known son of King Arthur and, presumably, Queen Guinevere. Amhar served as the King's squire and guarded his bedchamber. Nennius tells us that he was killed by his own father under unknown circumstances and buried within a cairn called Llygad Amr in Ergyng. The place is now called Gamber Head (Herefordshire). He may be identical to Smerbe, Arthur's son in the traditional pedigree of the Campbell clan.