Märta was the daughter of unknown parents. The date and place of her birth have not been found.
She had two marriages/partners. Her first husband was Sven Petersson Bölja. They were married, but the date and place have not been found. Their only known child was Håkan Svensson (1434-1472).
Her second husband was Torkild Pedersen Brahe. They were married, but the date and place have not been found. They had no known children.
Note 1
Daughter of Jöns Heggasson Sparre över Blad and Catharina Birgersdotter Stolpe