Sweyn's Daughter, Estrid

Estrid Svensdatter, daughter of Sweyn Forkbeard and sister of Cnut, was born c.990s and lived at last until after 1057. We do not know about her early life, and there is a great deal of speculation about who her mother was.One story is that she was the daughter of Sigrid the Haughty, the wife of King Eric the Victorious of Sweden. After Eric's death Sigrid married Sweyn. Other stories about Sweyn say his wife was a Polish princess, as Świętosława, the daughter of Duke Mieszko I of Poland.If she were the daughter of Sigrid, it would make her the sister of Olof Skötkonung. Olof, also called Olof the Swede, because King of Sweden. When Astrid's son, Sweyn II Estridsson, married Gunnhildr Sveinsdóttir, Pope Leo IX annulled it on the grounds of consanguinity. Gunnhildr was the maternal granddaughter of Olof Skötkonung, whose mother we are certain was Sigrid. This is the anecdotal evidence that Sigrid was her mother.When Sweyn Forkbeard died in 1014, Estrid came under the guardianship of…