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Birth:          ABT 1013 of Montdidier, Somme, France
Death:          1063 

Notes
https://en.wikipedia.org/wiki/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:
Ebles II, Count of Roucy, married Sibylle de Apulis, daughter of Robert Guiscard, 
Duke of Apulia and Sichelgaita de Salerno
Andre (d. after 1118), Seigneur de Ramerupt and of Arcis-sur-Aube, married 
Guisemode, widow of Hugh, Siegneur of Pleurs. Their son Eble de Roucy was Bishop 
of Châlons (1122-1127) and daughter Alix married Erard I, Count of Brienne.
Beatrix de Ramerupt (d. after 1129), married Geoffrey II, Count of Perche
Marguerite de Ramerupt, married Hugh, Count of Clermont-en-Beauvaisis (see Aubry 
de Mello, Count of Dammartin, for family relationships with Hugh and his brother 
Renaud II)
Ermentrude de Ramerupt (d. after 1102), married Thibaut, Count of Reynel, son of Olri, 
Count of Reynel.
Ada de Ramerupt (d. after 1121), married first Geoffroy, Seigneur de Guise, and 
second Gauthier, Seigneur de Ath
Adélaïs, married Arnold I, Count of Chiny
Aelis de Ramerupt, married Conan “Falcon” de la Sarraz. Their son was Barthélemy de 
Jur, Bishop of Laon.
Felicia of Roucy, married Sancho I, King of Aragon.

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

Parents
____ Hilduin III (ABT  995 - AFT 1032)
----- ----- ()

Siblings
DE MONTDIDIER Hilduin IV (ABT 1013 - 1063)

Marriage To DE ROUCY Alice (Adela) (ABT 1014 - 1063)
    m. 1031 

Notes

Parents
____ Ebles I (ABT  988 - 11 May 1033)
OF HAINAULT Beatrice (ABT  997 - AFT 1035)

Children by DE ROUCY Alice (Adela) ABT 1014 - 1063
OF RAMERU AND MONTDIDIER Adelais (Adelaide) (Adela) (ABT 1040 - )
DE MONTDIDIER-ROUCY Andre (EST 1040 - EST 1118)
DE MONTDIDIER (DE ROUCY) Margaret (Marguerite) (ABT 1045 - ABT 1110)
DE ROUCY Adelheid (Aelis) (ABT 1049 - )
DE MONTDIDIER Beatrice (ABT 1051 - AFT 2 Sep 1129)
DE ROUCY Felicitas (Felicie) (ABT 1059 - 3 May 1123)

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