Guillaume of Jumièges names “Richardum...atque Robertum et Willelmum” as the three sons of “dux Richardus” and his wife “Goiffredum Britannorum comitem...sororem...Iudith”. Ademar names Richard as son of "Ricardus Rotomagensis comes". An agreement between the abbots of Jumièges and Bougeuil concerning an exchange of land in Poitou, by charter dated [13 Apr/4 Apr] 1012, is subscribed by "Richardus…filius Ricardi principi magni, filius eius Richardus…". Guillaume of Jumièges records that “Rainaldus trans Saonæ fluvium Burgundionum comes” was imprisoned by “Cabilonensi comite...Hugone”, and that Richard II Duke of Normandy sent an army headed by “Richardo filio suo” [which presumably dates the event to [1016/26]] who besieged “Milinandum castrum” and forced Renaud´s release.
He succeeded his father in 1026 as RICHARD III Duke of Normandy. Orderic Vitalis records that “Ricardus juvenis filius eius” succeeded after the death of “Ricardo Gunnoride” for one and a half years.
Guillaume of Jumièges records that Duke Richard III, after suppressing the rebellion of his brother Robert, returned to Rouen where he died poisoned in 1028. Orderic Vitalis also alleges that he was poisoned. The Obituaire de Notre-Dame de Paris records the death "VIII Id Aug" of "Ricardus dux Normannie".
Betrothed (Jan 1027) to Adela de France, daughter of Robert II " le Pieux" King of France & his third wife Constance d'Arles [Provence]. Kerrebrouck mentions her betrothal to Duke Richard "très jeune" but does not cite the corresponding primary source, which has yet to be identified. "Richardus Nortmannorum dux" agreed grants of property to "Adela" on the occasion of their marriage by charter dated Jan 1026, which does not specify her parentage. She later married Baudouin V "Insulanus" Count of Flanders. The Genealogica Comitum Flandriæ Bertiniana names "filiam Rodberti regis Francorum Adelam" wife of "Balduinum Insulanum". The Genealogiæ Scriptoris Fusniacensis names "Alam comitissam Flandrensem" the daughter of King Robert.
Duke Richard III had two illegitimate children by unknown mistresses. 1
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