[1] She was the mother of King Anund Jacob of Sweden and the Kievan Rus' saint and grand princess Ingegerd Olofsdotter.
[2] Legend says that Estrid was possibly taken back to Sweden from a war in the West Slavic area of Mecklenburg, potentially as a war-prize.
[3] She was most likely given by her father, a tribal chief of the Polabian Obotrites, as a peace offering in a marriage to seal the peace, and she is thought to have brought with her a great dowry, as a great Slavic influence is represented in Sweden from her time, mainly among craftsmen.
Queen Estrid was baptised with her husband, their children and large numbers of the Swedish royal court in 1008, when the Swedish royal family converted to Christianity, although the king promised to respect the freedom of religion - Sweden was not to be Christian until the last religious war between Inge the Elder and Blot-Sweyn of 1084–1088.
Snorre Sturlasson mentions her as a lover of pomp and luxury, and as hard and strict towards her servants.