Meirchion Gul, King of Rheged
(Born c.450)
(Welsh: Meirchion; Latin: Marcianus; English: Markian)

Meirchion the Lean, presumably a very slim man, was the son of King Gurgust Ledlum. He succeeded his father as the monarch of a united Greater Rheged. Upon Meirchion's death in the early 6th century, the kingdom seems to have been divided between his two sons, Cynfarch Oer and Elidyr Llydanwyn, probably on a north-south basis.