Siallol was born among the common folk, with no house or name in the chronicles, and entered House Thausras by marrying Dastueth. He was cautious, easily content and rash, with a gift for keeping the accounts. In the autumn of year 162 he married Gatond. He gave House Thausras its name, and its motto: “A firm arm”. He lived under the rule of Densond, Mosskos, Tuindtuend and Sauchia. He knew hunger in Mueness. When he died, House Thausras counted one other member. He died of hunger in the autumn of year 178, at the age of 51. The house he founded would go out in the winter of year 179.