Ingeborg of Sweden Swedish Princess, Countess of Holstein-Plön (1263–1292) Parents Sophia of Denmark Valdemar Children Elisabeth von Schauenburg Elisabeth Katharina, Gräfin von Holstein Waldemar von Schauenburg Gerhard IV, Count of Holstein-Plön Siblings Richeza of Sweden, Queen of Poland Marina Valdemarsdotter of Sweden Erik Valdemarsson Margareta Valdemarsdotter av Sverige Katarina Valdemarsdotter of Sweden Partners Gerhard II, Count of Holstein-Plön