Fergus Mór was a king of Dalriada in the 5th century. He was born on June 29, 430 and died on October 12, 501. He was the son of Erc Mac Echach and Mist Ingen ingen Muiredaig. He ruled from 496-October 12th 501 when he died. He had several children with 2 wives in the 5th century. Not much is known about him except he was born through incest (his mother and father were siblings).