GIROIE [Geroius], son of ARNAUD "le Gros" & his wife --- (-before 1035). Orderic Vitalis names "Geroio Ernaldi Grossi de Corte Sedaldi Abonii Britonis filii filio...ex magna nobilitate Francorum et Britonum"[160]. He fought with Guillaume de Bellême against Herbert Comte du Maine[161]. Orderic Vitalis records that "Geroius" allied himself with “Willermo Belesmensi” and fought successfully against “Herbertum Cenomannensium comitem”[162]. Seigneur d'Echauffour et de Montreuil: Orderic Vitalis records that "Geroius" was betrothed to “Normannorum...miles...Helgo unicam filiam suam” with “Monasteriolum ac Escalfoium” [Montreuil et Echauffour] agreed as dowry, properties which were transferred to him after her father died, that she herself died before the marriage could take place, but that “Willermus Belesmensis” took Giroie to “Ricardum ducem Normanniæ” who granted “totam terram Helgonis hæreditario jure” to him at Rouen[163]. Guillaume of Jumièges records that “Geroius” went with “Belesmensi Willelmo” to the court of “Richardi Ducis” who granted him “in Normannia duo municipia Monasteriolum et Escalfoum” [Montreuil and Echaufour][164]. His death is dated by a passage in Orderic Vitalis who records that, after Giroie died, "Gislebertus...comes Brionniæ" attacked “Monsteriolum” but that “Rodbertus dux” [ruled from 1027-1035] reconciled the parties[165].
Betrothed to ---, daughter of HEUGON [Helgo] & his wife ---. Orderic Vitalis records that "Geroius" was betrothed to “Normannorum...miles...Helgo unicam filiam suam” with “Monasteriolum ac Escalfoium” [Montreuil et Echauffour] agreed as dowry, properties which were transferred to him after her father died, that she herself died before the marriage could take place, but that “Willermus Belesmensis” took Giroie to “Ricardum ducem Normanniæ” who granted “totam terram Helgonis hæreditario jure” to him at Rouen[166].
m ([1005/10]) GISLA, daughter of THURSTAN de Bastembourg & his wife ---. Guillaume of Jumièges records that “Geroius” married “Turstini de Monteforti...filiam...Gislam” by whom he had “septem filios et quatuor filias...Ernaldus et Fulcoius...Willelmus et Rodulfus Mala-Corona, Robertus, Hugo et Geroius, Heremburgis et Emma, Adelais et Hadvisa”, adding that “ex his filiorum et nepotum militaris turma propagata est, quæ Barbaris in Anglia vel Apulia seu Trachia vel Syria nimio terrori visa est” [“from these children and grandchildren sprang a race of knights who became the terror of the barbarians in England, Apulia, Thrace and Syria”][167]. Orderic Vitalis records that "Geroius" married “Gislam Turstini de Basteburgo filiam” by whom he had “septem filios et quatuor filias...Ernaldus, Willermus, Fulcoius, Radulfus Mala-corona, Rodbertus, Hugo et Geroius, Heremburgis, Hadvisa, Emma, Adelais”[168]. Her marriage can probably be dated to [1005/10]: Orderic Vitalis records that Giroie died only “Ernaldus et Willermus” were knights, in another passage making it clear that he died before the death of Robert II Duke of Normandy (who died in 1035)[169].
Giroie & his wife had eleven children