John III, Count of Holstein-Plön
John III of Holstein-Plön, called John the Mild, was a Count of Schauenburg and Holstein-Plön and Holstein-Kiel, ruling Holstein-Plön and Holstein-Kiel. Together with Count Gerhard III of Holstein-Rendsburg, John III was the lord ruling in... Wikipedia
Born: 1297
Died: September 27, 1359 (age 62 years)
Parents: Agnes of Brandenburg and Gerhard II, Count of Holstein-Plön
Children: Adolph IX, Count of Holstein-Kiel and Agnes of Holstein
Grandchildren: Jutta von Sachsen-Lauenburg, Catherine of Werle-Güstrow, Eric IV, Duke of Saxe-Lauenburg, and more
Partner: Miroslawa of Schwerin (1327–) and Catherine de Glogów (1319–)
Siblings: Eric VI of Denmark