John I of Isenburg-Braunsberg was the Count of Isenburg-Braunsberg from 1278 until 1327.
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Join the roomJohn I of Isenburg-Braunsberg was the Count of Isenburg-Braunsberg from 1278 until 1327.
John I of Isenburg-Braunsberg was the Count of Isenburg-Braunsberg from 1278 until 1327.