"Otto, Count of Vermandois"
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Title "Otto, Count of Vermandois" Publisher Wikipedia: The Free Encyclopedia. Wikimedia Foundation, Inc. https://en.wikipedia.org/wiki/Otto,_Count_of_Vermandois, 22 May 2018 Source ID S5009 Linked to Ermengarde of Bar-sur-Seine
Simon de Vermandois
Pavia
Adalbert II of Vermandois, Count of Vermandois
Herbert III of Vermandois, Count of Vermandois
Herbert IV of Vermandois, Count of Vermandois
Otto of Vermandois, Count of Vermandois
Peter of Vermandois