Hilduin IV, Count of Montdidier

Hilduin IV (d. 1063), Count of Mondidier and Seigneur de Ramerupt, son of Hilduin III, Count of Montdidier, member of the House of Montdidier. Hilduin was also Count of Roucy by virtue of his marriage to the daughter of Ebles I, Count of Roucy.

Little is known about Hilduin despite his many renown children and grandchildren. Hermann Monacii of Laon records that Philip I of France appointed Hilduin as an ambassador to Rome (date unknown).

Hildiun married Adelaide (Alice) de Roucy, daughter of Ebles I, Count of Roucy, and Beatrix of Hainaut, daughter of Reginar IV, Count of Mons, and Hedwig, daughter of Hugh Capet. They had nine children:

HIlduin was apparently the last Count of Montdidier, the line being continued with the Counts of Roucy.

Bury, J. B. (editor), The Cambridge Medieval History, Volume V, Contest of Empire and Papacy, Cambridge at the University Press, 1926

Hermann Monacii of Laon, From the Miracles of Mary (Hermanni Laudunensis Monacii de Miraculis B. Mariæ Laudunensis), RHGF XI

Morton, Catherine, and Muntz, Hope (editors). The Carmen de Hastingae Proelio of Bishop Guy of Amiens, Oxford at the Clarendon Press, 1972

Medieval Lands Project, Seigneurs de Ramerupt, Comtes de Montdidier, Comtes d’Arcis-sur-Aube

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