He is named and his parentage given by Orderic Vitalis. "Rotrocus comes Perticensium" donated property to the abbey of Sainte-Trinité de Tiron by charter dated [1119] subscribed by "Juliane soror mea, Richerii filius eius". He claimed his father's lands in England from King Henry but was refused on the excuse that his brothers were serving in the royal household troops and expecting the honor. It was eventually granted to him after the intervention of his uncle Comte Rotrou, but Louis VI King of France attacked Laigle and forced Richer to hand it to him 3 Sep 1118. "Richerus…dominus de Aquila" confirmed the donation of property to Notre-Dame de la Trappe by "Gerburgis mater Guillelmi Goidi de Asperis" by charter dated 1136. "…Richerius de Aquila…" witnessed the charter dated to [end 1150/early Sep 1151] under which "H. dux Normannorum" granted privileges to the citizens of Rouen. The Red Book of the Exchequer records enfeoffments in the duchy of Normandy in [1172], "Richerius de Aquila" with 5 knights and one half "de feodo de Crepo[n] in Cadamo".
Robert of Torigny records the death in 1176 of "Richerius de Aquila" and the succession of "Richerius filius eius". 1
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