Sophie of Pomerania was the firstborn child of Bogislaw X of Pomerania and Anne of Poland, aunt of Louis II of Hungary. She was the second wife to Frederick I of Denmark after Anne of Brandenburg died. She was religious and thus was fairly upset by the death of Frederick and his son by Anne Christian III coming to the throne and making Lutheranism the state religion. In 1533 she and her children John and Dietrich moved to Gottrop. In 1561 she moved to Holstein following John's gain of the Holstein area. She was not, however, politically active and thus brought little change to the Tudor Line.