PIERRE [VI] le Hideux de Chambly ([1241/42]-after 1297). Chamberlain of Philippe III King of France. King Philippe III repurchased from “Petrus de Chambeliaco…cambellanus…noster” various revenues from Beaumont and Méru, including the right to revenue bought by “defunctus Petrus quondam avus suus” from “Baldoino de Bellovidere”, bought by charter dated Oct 1275[204]. Seigneur de Chambly. "Pierre dit Hideus de Chambli chambellan le Roy de France" donated property to the priory of Saint-Léonor, with the consent of “Marguerite ma femme”, by charter dated Mar 1278 (O.S.)[205]. The Vie de Saint Louis, written by the confessor of Queen Marguerite, names “monseigneur Pierres seigneur de Chambli chevalier, chambellene du roi Philippe...du dyocese de Biauvès, de quarante an ou environ...monseigneur Pierres de Loon chevalier...de soixante-huit ans ou environ” among the witnesses at the enquiry into the proposed canonisation of King Louis IX, dated to 1282[206]. Depoin refers to a source in which Pierre [VI] de Chambly declares himself heir to his mother “Sébile veuve de monseigneur Pierre de Laon” and transferred property to King Philippe IV[207]. “Pieres sires de Chambli chevalier et chambellan de...Loys roy de France” donated revenue from a grant to him by “noble Jehanne jadis comtesse d’Alençon” to Paris Saint-Marcel, for the soul of “nostre...compaigne Marguerite”, by charter dated Aug 1293[208]. An arrêt of the parliament recorded in Jan 1295 ordered the transfer of assets acquired “matrimonio inter Petrum dominum Chambliaci et eius quondam uxorem” be due to “Petrum eorum filium”[209]. “Petrus de Chambliaco miles...domini regis cambellanus” donated revenue to the abbaye du Val, in accordance with the last wishes of “Marguerite”, by charter dated Feb 1295[210]. m firstly MARGUERITE, daughter of --- (-2 Mar, before Aug 1293). "Pierre dit Hideus de Chambli chambellan le Roy de France" donated property to the priory of Saint-Léonor, with the consent of “Marguerite ma femme”, by charter dated Mar 1278 (O.S.)[211]. The necrology of the abbey of Notre-Dame du Val records the death "VI Non Mar" of "domina Margarita mater domini Petri de Chambli"[212]. “Pieres sires de Chambli chevalier et chambellan de...Loys roy de France” donated revenue from a grant to him by “noble Jehanne jadis comtesse d’Alençon” to Paris Saint-Marcel, for the soul of “nostre...compaigne Marguerite”, by charter dated Aug 1293[213]. m secondly ([1294]) as her first husband, ISABELLE de Mauvoisin, daughter of GUY de Mauvoisin Seigneur de Rosny & his wife Isabelle de Mello (-after 1323). A charter dated 1294 names “Isabelle de Rosny femme de Pierre de Chambly”[214]. A charter dated May 1297 records royal grants to “les enfans nez et à naistre de Isabeau de Roony, engendrez et à engendrer de Pierre seigneur de Chambly”[215]. She married secondly Jean [II] Sire de Heilly, and thirdly (1323) as his second wife, Jean [II] Comte de Sancerre. Pierre [VI] & his first wife had one child