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).
Thorolf Kveldulfsson Thorolf Kveldulfsson (modern Icelandic: Þórólfur Kveld-Úlfsson) was the oldest son of Kveldulf Bjalfasson and brother of the Norwegian/Icelandic goði and skald Skalla-Grimr. His ancestor (great uncle) Hallbjorn was nicknamed "halftroll", possibly indicating Norwegian-Sami ancestry.