Holstein-Plön
Holstein-Plön was a county of the Holy Roman Empire centred on Plön and Kiel Fjord. In 1337 John III of Schauenburg ruled it among several cousins holding parts of Holstein.
John's son Gerhard V died without heirs in 1350, followed by John in 1359. When the Plön line ended in 1390, its lands passed to the counts of Holstein-Rendsburg. That line ended in 1459; Christian I of Denmark acquired Holstein in 1460 and raised it to a duchy in 1474.
Characters
- Adolph IX of Holstein-Kiel
- Gerhard II, Count of Holstein-Plön
- Gerhard IV of Holstein-Plön
- Gerhard V of Holstein-Plön
- Ingeborg of Holstein
- John III of Holstein-Plön