Rosbriark was born among the common folk, with no house or name in the chronicles, and entered House Zethduirk by marrying Raindchond. He was ambitious, generous and loyal. He gave House Zethduirk its name, and its motto: “Let those who come tremble”. He lived under the rule of Thegueth, Lainchon, Garkthial, Brosdau, Tiandskath, Chosuizan, Skairkta, Londruin, Daunmend, Mondrais and Manra. He saw Stianess and Zailira founded. He knew hunger in Mueness. When he died, House Zethduirk counted one other member. He died of hunger in the summer of year 83, at the age of 57. The house he founded would go out in the autumn of year 83.