Overview
Sophia of Minsk or Sophia of Polotsk (died 5 May 1198) was a Danish queen consort by marriage to King Valdemar I of Denmark, and a landgravine of Thuringia by marriage to Louis III, Landgrave of Thuringia.
Life
Origin
Sophia was the daughter of Richeza of Poland, Dowager Queen of Sweden, from her second marriage to a man called "Valador", King in Poloni Land. The identity of her father is uncertain, it was either Volodar of Minsk or , Prince of Novgorod and son of Vsevolod of Pskov. Both of them are members of the Iziaslavichi of Polotsk. The latter version would mean Valdemar was married to his first cousin once removed, as Sophia's possible father Volodar was a nephew of Valdemar's mother Ingeborg of Kiev.
Childhood
Sophia spent a part of her childhood in Denmark, where her mother had been married to a Danish prince in her first marriage, and returned with her daughter when her second marriage was terminated. Sophia was the half sister of Canute V of Denmark, the son of her mother by her first marriage: after her half brother became king of Denmark in 1146, her mother returned to Denmark with her daughter Sophia, who thus spent part of her childhood in Denmark at the court of her half brother the king.
From Wikipedia (CC BY-SA 4.0).