Gerhard II of Holstein-Plön (1254 - 28 October 1312), nicknamed the Blind, was Count of Holstein-Plön from 1290 to 1312.
He was the second son of Gerhard I, Count of Holstein-Itzehoe and Elisabeth of Mecklenburg.
After his father's death in 1290, the county was divided among the surviving sons. Gerhard II received Holstein-Plön; his younger brother Adolph VI received Holstein-Schauenburg and Henry received Holstein-Rendsburg.
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He married on 12 December 1275 the Swedish Princess Ingeborg (c. 1262 – c. 1293), a daughter of King Valdemar of Sweden. They had four children:[citation needed]
In 1293 Gerhard married Agnes of Brandenburg, the widow of King Eric V of Denmark. With her, he had a son:
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