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Also known as Gareth Beaumains, Sir Gareth of Orkney.png

Gareth of Orkney () is a Knight of the Round Table in the ''Le Morte d'Arthur'' version of the Arthurian legend and many modern works based on it. He is depicted as the youngest son of King Lot and the Queen of Orkney, King Arthur's half-sister, thus making him Arthur's nephew, as well as the youngest brother to Gawain, Agravain and Gaheris.