How was Fridlevus II related to Halfdan?
Halfdan Halfdan (Old Norse: "Halfdan" , Old English: "Healfdene" , Medieval , Proto-Norse: "*Halbadaniz", "half Dane") was a late 5th and early 6th century legendary Danish king of the Scylding (Skjöldung) lineage, the son of king named Fróði in many accounts, noted mainly as the father to the two kings who succeeded him in the rule of Denmark, kings named Hroðgar and Halga in the Old English poem "Beowulf" and named Hróar and Helgi in Old Norse accounts.
Second Swedish Crusade The Second Swedish Crusade was a Swedish military expedition to areas in present-day Finland by Birger Jarl in the 13th century. As a result of the crusade, the Swedish kingdom began to exert influence in western Finland.