Hrollager Rögnvaldsson

   Another name for Hrollager was Drogo Thustain.

  Noted events in his life were:

• Background Information. ⁵⁶⁰
Drogo, the half-brother of Rollo, who, in his division of Normandy in fiefs among his followers, seems to have allotted the northern district of la Manche to Drogo. The latter took the surname of Turstain, in memory of the supposted descent of his ancestry from Thor, the son of Odin. Drogo and Rollo were sons of Rogvald, Jarl of Moere, 885, who was the grandson of Ivar, Jarl of Upland, 850, who married the daughter of King Trondhemilm, whose grandfahter, Eisten, King of Trondheim, 780, was himself grand son of Sigur Hrin, King of Sweden, living in 735. The latter's father, King Randver, was the grandson of Ivar Vidfamer, King of the Danes, who himself was the grandson of Olaf the Sharp-eyed, King of Rerik.
~A Genealogical History of the Family of Montgomery, pg. 12