Which legendary danish King had a clan called Skjöldungs?
Hrólfr Kraki Hrólfr Kraki, "Hroðulf", "Rolfo", "Roluo", "Rolf Krage" (early 6th century) was a legendary Danish king who appears in both Anglo-Saxon and Scandinavian tradition. His name would in his own language (Proto-Norse) have been *"Hrōþiwulfaz" (famous wolf).
Orkneyinga saga The Orkneyinga saga (also called the History of the Earls of Orkney) is an historical narrative of the history of the Orkney Islands, from their capture by the Norwegian king in the ninth century onwards until about 1200. The saga has "no parallel in the social and literary record of Scotland".