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21. BALDWIN IV, the Bearded, b. 980, Count of Valenciennes, 1007, and Count of Flanders, d. 30 May 1035; m. abt. 1012, Ogive (or Otgiva) of Luxembourg, b. abt 995, d. 21 Feb. 1030 or 1036, dau. of FREDERICK I (143-20) Count of Luxembourg, by his wife Ermentrude of Gleiberg. (ES I.2/203, 11/5; West Winter, VIII.114)

Ogive of Luxembourg
From Wikipedia, the free encyclopedia
Ogive was born to Frederick of Luxembourg and his wife Irmtrud of Wetterau. Her probable birth date of 995 makes it likely that she was one of Frederick's eldest children.[1]
Ogive married Baldwin IV, Count of Flanders, who sought to strengthen his connection to the royal house by marrying this niece of Queen Cunigunde of Germany. Ogive had a son in 1012, also called Baldwin.[1]
She died in 1030 and was buried at Saint Peter's Abbey, Ghent.
1. Karl-Heinz (2002). "Ogiva von Luxemburg". Internet Archive. Archived from the original on 29 September 2007. Retrieved 11 June 2017.