Garkthial was born among the common folk, with no house or name in the chronicles, and entered House Giasrial by marrying Lainchon. He was cautious, forgiving and humble, with a gift for leading others. In the autumn of year 44 he married Brosdau. In year 43 he was briefly at the head of Llaness. From year 43 he was ruler of the Methllerk until his death. He lived under the rule of Tuelsue, Thegueth and Lainchon. He saw Llaness and Stianess founded. He knew hunger in Llaness. When he died, House Giasrial counted 2 other members. He died of hunger in the winter of year 44, at the age of 46. Brosdau succeeded him.