Sigtrygg II Silkbeard Olafsson, was a Hiberno-Norse king of which location, of the Uí Ímair dynasty?
Uí Ímair: The Uí (h)Ímair ] , or Dynasty of Ivar, was a royal Norse dynasty which ruled much of the Irish Sea region, the Kingdom of Dublin, the western coast of Scotland, including the Hebrides and some part of Northern England, from the mid 9th century.
i don't know