Oda van Aarschot

-http://fmg.ac/Projects/MedLands/BRABANT,%20LOUVAIN.htm#OdaMGerardGr...

4. [ODA . According to Croenen, the wife of Gerard [I] van Grimbergen was Oda, daughter of Arnout [III] Graaf van Aarschot, but he does not cite the primary source on which this is based[586]. The chronology for this parentage is not ideal, given the birth date ranges estimated for this family, and suggests that, if Oda was related to the Aarschot family, she was more likely Arnout [III]´s sister. John Immerseel has pointed out a property connection between the Aarschot and Grimbergen families: the donation by Graaf Arnold to Afflighem in 1125 consisted of Buggenhout, Malre and Steenhuffle all of which were later held by the Grimbergen family[587]. A relationship between the Aarschot and Grimbergen families is confirmed by the charter of Liège Saint-Lambert dated 1175 which names "confrater noster Reinnerus bone memorie archidiaconus" [identified as Reiner son of Arnout [III] Graaf van Aarschot] and "cognato suo et ab infantia secum educato Arnulpho de Grinberges concanico nostro"[588]. If the possible reconstruction shown here is correct, the two individuals named in this document would have been first cousins.

m GERARD [I] van Grimbergen, son of [WALTER [I] van Grimbergen & his wife ---] (-after 1129).]