Cecilia of Sweden was a queen consort born in 1295, known for her marriage to King Magnus IV of Sweden. She was the daughter of Duke Eric of Södermanland and Princess Ingeborg of Norway. Cecilia played a significant role in the political landscape of her time, particularly in the governance of Sweden during her husband's reign. Cecilia's marriage to Magnus IV in 1318 strengthened ties between the Swedish and Norwegian royal families. She became the mother of several children, including King Birger of Sweden. Her legacy is often associated with the challenges of medieval royal life and the complexities of dynastic politics in Scandinavia.