Who was Jutta of Saxony's father-in-law?
Eric IV of Denmark Eric IV, also known as Eric Ploughpenny or Eric Plowpenny (Danish: "Erik Plovpenning" ), (  1216 – 10 August 1250) was king of Denmark from 1241 until his death in 1250. He was the son of King Valdemar II by his wife, Berengaria of Portugal, and brother of King Abel and King Christopher I.
Princess Therese of Saxe-Altenburg "Teresia" Amalia Karolina Josefina Antoinetta of Saxe-Altenburg ("Thérèse"), (21 December 1836 – 9 November 1914), was a Princess of Sweden and Norway as the spouse of Prince August of Sweden & Norway, Duke of Dalarna.