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.
Augusta of Denmark Princess Augusta of Denmark (8 April 1580 – 5 February 1639) was the third daughter of King Frederick II of Denmark and Sophia of Mecklenburg-Güstrow, and Duchess of Holstein-Gottorp as the wife of Duke John Adolf. She was politically influential during the reign of her son, Duke Frederick III.