Overview
Martha Eriksdotter Leijonhufvud (24 December 1520 in Ödeby Lillkyrka, Ekeberg, Närke – 15 January 1584 in Stegeholm), known as, was a politically-active Swedish noblewoman. She was the sister of Queen Margaret Leijonhufvud and sister-in-law of King Gustav I of Sweden: she was also the maternal aunt of Queen Catherine Stenbock and the daughter-in-law of the regent Christina Gyllenstierna. In 1568, she financed the deposition of King Eric XIV of Sweden, which placed her nephew John III of Sweden on the throne.
Biography
Marriage
Born to Erik Abrahamsson Leijonhufvud (d. 1520), a victim of the Stockholm Bloodbath, and Ebba Eriksdotter Vasa, and relative of Gustav Vasa, who became king of Sweden in 1523.
Her sister Margaret was engaged to Svante Stensson Sture, the son of former regent Christina Gyllenstierna, but the engagement was broken in 1536 when king Gustav decided to marry her. Instead, Sture was married to Märta. There is a well known legend as to how this came about: Svante Sture threw himself at the feet of Margaret, and the king entered the room and discovered them. The king asked: "What is this?" Margaret replied: "My lord Sture is asking me for the hand of my sister Märta!", at which the king said: "Granted!"
From Wikipedia (CC BY-SA 4.0).