John III, Count Of Holstein-Plön
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| Date of died | September 27,1359 |
|---|---|
| Children | Agnes of Holstein |
| Adolph IX, Count of Holstein-Kiel | |
| Parents | Gerhard II, Count of Holstein-Plön |
| Agnes of Brandenburg | |
| Grandchildren | Eric IV, Duke of Saxe-Lauenburg |
| Grandparents | John I, Margrave of Brandenburg |
| Gerhard I, Count of Holstein-Itzehoe | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 818479 |
About 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 guardianship the Danish Duchy of Schleswig 1332–1340.
