Matilda of Holstein or Mechthild was a Danish queen consort, married to King Abel of Denmark and later to Birger Jarl, Regent of Sweden. Wikipedia
Born: County of Holstein
Died: 1288, Kiel, Germany
Parents: Adolf IV of Holstein and Heilwig of Lippe
Spouse: Birger Jarl (m. 1261–1266) and Abel, King of Denmark (m. 1237–1252)
Great-grandparents: Adolf II of Holstein and Bernard II, Lord of Lippe
Great grandchildren: Eric II, Duke of Schleswig and Bernhard III, Prince of Anhalt-Bernburg