Sophia was the daughter of Bogislaw IX, Duke of Pomerania and Maria of Masovia.
In 1446, her father died and was succeeded by his cousin, Eric of Pomerania, former King of Denmark, Norway and Sweden.
At the death of Eric of Pomerania in 1459, Sophia's husband united Pomerania through the inheritance of Pomerania-Stolp and Pomerania-Rügenwalde by his marriage, while Sophia became the sole possessor of the vast fortune brought by Eric of Pomerania from his former kingdoms in Scandinavia, as well as the wealth he had acquired by his piracy activity on Gotland.
As Eric refused to allow Sophia any of the political power over the territories he acquired through her, which she felt she was entitled to, the couple separated.
[1] Sophia moved to Rügenwalde Castle with her children and her lover, Hans of Maszerski.