ROBERT de Poissy . An undated charter records toll exemptions granted to Bec by "Wasco de Pixeio", with the consent of "Iachelinæ uxoris meæ…et filiorum meorum Wasconis et Roberti et filiæ Petronillæ"[3283]. "Gasce de Poissy" donated income from Fresnes and "in villa mea…Mansiones" to Abbécourt, with the consent of "filii mei Gasco, Robertus, Almaricus, Galterus, Gervasius", by undated charter[3284]. "Gacho de Pissiaco" granted navigation toll concessions to Notre-Dame des Vaux de Cernay, with the consent of "Roberti, Almarrici et Galteri fratrum meorum", by charter dated 1190[3285]. “Gacho de Pissiaco” granted toll exemptions to Bon Port Notre-Dame, with the consent of “Roberti, Almarici et Galteri fratrum meorum”, by charter dated 1190[3286]. The Chronique de Saint-Nicaise records that "Robertus de Pissiaco filius Gachonis de P." to Saint-Nicaise, with the consent of "Amalrici et Galterii et aliorum fratrum meorum", for anniversaries for "G. patris mei et Jacheline matris mee et fratris mei G", by charter dated 1193[3287]. “Robertus vicedominus Carnotensis” bequeathed certain property to various abbeys and churches by charter dated to [1193], witnessed by “Gervasius de Castello cognatus meus, Gacio de Pissiaco cognatus meus, Robertus frater suus...”[3288]. "Robertus de Pisciaco" confirmed the donation of property “tam apud Mesonias quam apud Medontam” made to Ourscamp Notre-Dame by “dominus Gasso pater meus...Gasso frater meus”, with the consent of “Almarici et Galteri fratrum meorum”, by undated charter[3289]. The Scripta de Feodis of King Philippe II record “Robertus de Pissiaco” holding “de domino rege pedagium de Meisons...et quicquid...apud Bethemont...et...apud Pissiacum...et quicquid Amalricus de Pissiaco habet in villa Alodiorum...apud Chamborci a Gascione de Pissiaco...”[3290]. King Philippe II confirmed an agreement between “Robert de Poissi et Jean de Moret son frère” under which “la forteresse de Radepont” would be destroyed and each brother would receive half “du domaine de Radepont”, by charter dated Mar 1219[3291]. The necrology of Joyenval records the death “10 Apr“ of "dominorum Gasçonis, Roberti, Almarici, Galteri et Gervasii de Pisciaco militum, preæfatæ Albæcuriæ fundatoris filiorum”[3292]. It is not to what event this date relates
je conserve l'hypothèse de Depoin qui porte Robert fils du couple Gasce de Poissy X Mabile; c'est conforme pour les dates. (voir Racines et Histoire, Poissy, p7)
