Complex sentence: In about 1035, she married the Swedish jarl Ragnvald Ulfsson (d.1040), and after his death with Prince Emund Olofsson of Sweden; in 1050, Emund became king, and she became queen of Sweden.
Split into simpler sentences: In about 1035, she married the Swedish jarl Ragnvald Ulfsson. In 1050, Emund became king, and she became the queen of Sweden.