Gerhard IV, Count of Holstein-Plön

Gerhard IV (c. 1277 – 1323), was Count of Holstein-Plön from 1312 until his death.

Life
He was the eldest son of Gerhard II and his wife, Ingeborg of Sweden. He inherited Holstein-Plön; on 7 June 1314, he sold most of his inheritance to his brother John III.

Marriage and issue
He married on 30 July 1313 to Anastasia of Schwerin (c. 1291 – after 1316), a daughter of Nicholas I of Schwerin, and had the following children with her:
 * Gerhard V of Holstein-Plön (c. 1315 – 22 September 1350), canon at Lübeck Cathedral, potential future Count of Holstein-Plön until his early death.


 * Ingeborg (c. 1316 – after 1349), married to Count Conrad I Oldenburg; they were parents of Christian V, Count of Oldenburg

Seals
An early seal from his time as Provost of Lübeck reads: S (IGILLUM) * DEI * GRA * GHERARDI (TIA) * P (RAE) POSITION (U.S.) * LUBIC (E) N (SIS) "Seal of Gerhard, provost of Lübeck by the grace of God"