1. Count Hilduin (Herluin) II. of Montdidier.
1.1. Count Manasses de Dammartin, sp. “Constance” (possibly de Capetian); killed in battle at Ornel, October 15, 1037.(Mon. Germ. Script., viii). Robert II. King of France confirmed the donation of “Manasses comes” to Chartres Notre-Dame by charter dated Feb. 4, 1031, signed by “Manasses comitis, Hilduini comitis fratris eius, filiorum eius Manassis et Hilduini”. (Necrology Verdun Saint-Vanne (1902), p. 148).
1.1.1. Count Hugh I. de Dammartin, m. Rohais de Bulles. Of the various hypothesese regarding her, perhaps the most substantial makes her synonomous with Rohais d’Hérouville; lands owned by her devolving to the Dammartins. (Hérouville-St-Clair, Hérulfivilla, Herolvilla). Ascelin of Bulles’ son, Ascelin, and his da., Rohais, inherited Bulles successively in his lifetime. Hugues of Dammartin was to become “seigneur of Bulles”. Count Hugh is named as brother of Count Hilduin III., Comte de Ramarapt-Roucy. (Bouquet, Historiens de France, x., p. 626).
1.1.1.1. Adela de Dammartin, m. Aubrey I. de Mello, Chamberlain of France.
1.1.1.2. Eudes de Dammartin, held in Norton and Mendlesham, Suffolk.
1.1.1.2.1. Alberic I. de Dammartin, Count of Dammartin, sp. (1) Mathilde, (2) Joan Basset, da. of Gilbert Basset, Baron of Hedendon, who m.. Egeline, da. of Reginald de Courtney. Their son, Thomas Bassett, ob. 1220, held the wardship of “John de Hersy”, son of “Hugh de Hersy”, of Nether Pillerton, in 1211.

(1. ————- 1.1. Thurstan Bassett of Colston, Nottinghamshire. 1.1.1. Richard Basset of Wallingford, Berkshire. 1.1.1.1. Thurstan Bassett of Letcombe Basset, Oxfordshire. 1.1.1.1.1. Isabel Basset, b. c. 1175, of Clapham, Bedfordshire, m. Robert Mauduit, son of William Mauduit and Isabel de St. Liz. William Mauduit was the brother of Robert Mauduit, whose da., Constance, m. Guillaume de Pont de l´Arche, whose connection to the Mauvoisins is shown hereafter. 1.2. Thomas Bassett. 1.2.1 Gilbert, Baron of Hedendon, m. Egeline, da. of Reginald de Courtney. 1.2.1.1. Thomas Bassett, ob. 1220, aforementioned).

1.1.1.2.1.1. Alberic II. de Dammartin, m. Maud de Clermont, da. of Count Renaud II. of Clermont, and Clemence de Barre. Renaud was a grandson of Renaud I., Count de Clermont (“Rainaldus comes“), and brother of Ermentrude de Clermont, wife of Hugh d’Avranches. “Rainaldus comes” may have been the father of “Gislebertus”, as follows.
1.1.2. Eustachia Dammartin, sp. Raoul de Mauvoisin.
1.1.2.1. Agnes de Mauvoisin, m. William Crispin 11, son of William Crispin I. “Gislebertus fils de Rainaldus” donated 80 acres of land in Tillaye (Tilolum), canton St George-de-Vievre, 40 mls from Damville, to Bec. Gilbert was a vassal of the Crispins. Emma de Conde,* da. of Gilbert Crispin I, and sister of William Crispin I and Gilbert Crispin II., donated the church of Tillaye to Bec. She was of St.-Christophe-de-Conde, 2 miles from St George-de-Vievre. Between l063 and l069, Gilbert de la Cunelle (very probably the son of “Rainaldus”), his wife and son, Grimond, witnessed the gift of Robert de Grandvilliers, their lord, of the church of that parish to St. Vandrille. The ratification of a gift by Gilbert Crispin 11. of the tithes of the Church of Damville to Bec in 1070 was witnessed by his overlord, Richard de Bienfaite, son of Gilbert de Brionne, who also ratified the gift of “Rodulfus de Cunella”), Gilbert’s younger son, vassal of the Crispins, of land at Tillieres, and 30 acres at Damville. (Ange Petit, Hist. de Damville). Raoul de la Cunelle’s name was taken from Thimerais, wherein Chateauneuff, a pun being “wild thyme” (Cunelle), which is a different orthography from the Anglo-Saxon Cnoll (Knoll) and other derivatives, meaning a hill, summit; an extremely common source of toponyms in England. *Emma Crispin m. Pierre de Conde, vassal of the Cornuallles family.

(1. Gilbert Crispin
1.1. William Crispin (Colville), Castellan of Neaufles, vicomte of the Vexin, m. Eve de Montfort.
1.1.I. Miles Crispin, m. Matilda de Oilly, Lady of Wallingford (Domesday Descendants, p. 775, 2002).
1.1.1.1. Matilda Crispin, m. Brien FitzCount, brother of Conan de Bretagne, and uncle of Hoël de Cornouaïlle, comte de Nantes. He founded L’abbaye de Bout-de-Bois in Héric in honour of his da., Odeline, dedicating it to Marmoutier. Héric is first mentioned in 549 AD in relation to Félix, évêque de Nantes. Héric from L.”hericus” (hérisson); hedgehog. Such names as Herche, Hérichey, and Héricher were older forms of the Norman dialect, a newer form consisting of the substitution of the ch with the double s, as exampled in Wace’s rhyme which couples mesons with herichons (barriers furnished with points of iron, as in a fort’s pallisade, which bristled like the spines of an hedgehog).
1.1.2. William Crispin II. m. Agnes Mauvoisin.
1.1.2.1. Amaury Crispin, “probably a son of William II. Crispin, married ca. 1112 Warmatia of Jarzé, heiress of Champtoceaux and widow of Geoffrey de Briollay” (Western Michigan University, Medieval Prosopography, p. 21, 1993).
1.1.2.2. Thomas de Colville, youngest son, ancestor of the Stanhopes.
1.1.2.3. William Crispin III.
1.1.3. Gilbert Crispin, Abbot of Westminster.
1.2. Emma Crispin, m. Pierre de Conde.
1.3. Gilbert Crispin (Colville), Castellan of Tillieres, m. Hersende de BrezOlles.
1.3.1. Robert d’ Armentieres.
1.4. Robert Crispin, the exile, died in Byzantium.
1.5. Esilia Crispin, m. William Malet I.).

Little need be made of Rodulfus de Cunella being an “inheritor” of Albert de Cravant, who, in 1052, gave to the abbey of Coulomb the church of Saint-Hilaire de Blaru, this gift was successively approved by Pierre de Blaru, son of Oudart de Vernon, i.e. Pierre de Vernon; Gallia christiana designates him only as “Petri, militis Vernonensis”. Richard (probable half-brother of Gilbert Crispin I.), son of Count Gilbert de Brionne, was one of the witnesses of this gift.

There is a great complexity in interpreting data of this time. Was land passed to those related, or conferred by the ducal family? – in this case to a vassal of the Brionne family (a political “inheritance).

1. Raoul Mauvoisin, “le Barbu”. Donator to St. Evroult. “Le plus ancien seigneur connu de Rosny fut Raoul, dit le Barbu, Radulfus malus vicinus cognomento ad barbam, comme il s’appelle lui-même dans une charte sans date qu’il donna à l’abbaye de Coulomb et dans laquelle il mentionne la présence de ses fils: Robert, Raoul, Guiard et Guerrie (Duchesne, Extrait de Coulomb; Bibl. nat., collection Baluze, I. XXXVIII, fo. 27). Orderic Vital raconte que ce furent les ravages que ce Raoul Mauvoisin et les autres chevaliers de Mantes avaient exercés au delà de l’Eure, dans le diocèse d’Evreux, qui attirèrent sur cette ville la colère de Guillaume le Conquérant qui la réduisit en cendres en 1087, et y mourut en traversant ses débris encore fumants (Ord. Vital, liv. VII. chap. II.). Raoul le Barbu eut pour successeur l’un de ses fils, Gui Ier Mauvoisin, qui en 1119 était l’un des alliés d’Amaury de Montfort disputant, les armes à la main, à Henri, roi d’Angleterre, le comté d’Evreux qui lui appartenait de droit héréditaire (Ord. Vital, livre XII, chap. vi.)”. (See Auguste Moutié, Chevreuse: Chatelains, barons et ducs, p. 234, 1876). Amaury de Montfort was a cousin of the Crispins, William Crispin I., father of William Crispin II., and son of Gilbert Crispin I., having married Eve de Montfort. William Crispin III., son of William Crispin II., fought on the side of his kinsman, Amaury de Montfort, at the battle of Bremule, nearly slaying Henry I., who was only saved by the quality of his armour.

(Gilbert Crispin I. almost certainly married Gunnora d’Anet, da. (on chronological grounds) of Foulques d’Anet, son of Osmund de Centville, son of Osborn de Crépon and Emma, da. of Raoul d’Ivri (Count Rodolph), uterine brother of Duke Richard I. There is no proof that Osmund de Centville was related to an earlier personage of that name. This identification of Gilbert’s wife answers M. Le Prevost’s statement that there was an apparent association between the Crispin and FitzOsborn family, without the basis of that association being known. ‘Nous ignorons à quel titre Gislebert Crespin etait appele à ratifier cette donation; mais nous supposons que ce pouvait être à raison de quelque alliance avec la famille d’Ivri, dont le souvenir est perdu (‘Ordericus Vitalis’, ed. le Prevost et. al., p. 398, 1840). The son of Raoul d’Ivri, Hugh, Bishop of Bayeux, succeeded him after 1015. Much of his vast possessions passed to the son of his br.-in-law, Osbern de Crépon. It was Osborn’s son, William FitzOsbern, the Conqueror’s seneschal, who established the honor of Breteuil, including possessions from Breteuil-sur-Iton (Eure) to Pacy. Ipso facto, vassals of the Crispins were alo linked to the family of Breteuil.

(1. Ribauld de Chateauneuf, Lord of Brezolles, Regemallard, Sorel, Fontaine-le-Riboux (to which he gave his name), who held considerable land in Dreux, with him sometimes being named Ribauld de Dreux.
1.1. “Fidelismus Alberius filius Ribaldi, Nobilissimi viri”; or “Nobilissimi Ribaldi filius”, named as such in a charter of St. Pere, in which he donated the Church of St. Germain de Brezolles, his father’s foundation. In 1060, another lord of this region, Gazo (Gaston de Chateauneuf) founded a priory on the left bank of the Eure in Croth, given to the abbey Of Marmoutier. Gaston was the son of Raoul Mauvoisin, le Barbu, father -in-law of William Crispin II. (this marriage being a French/Norman peace treaty), and succeeded in establishing himself at Chateauneuf-de-Thymerais. He founded the family of Châteauneuf, and held the seigneury of Brézolles (c. 1060) at the death of Albert Ribaud). Truly, there is a great complexity in interpreting data of this time. Was land passed to those related, or conferred by the ducal family? Both. In this regard, there is no proof that Gaston de Chateauneuf was related to Albert Ribaud.

1.1. Raoul II. de Mauvoisin, vicomte de Mantes. It is he who occurs as ‘Malusvicinus’ in Suffolk, 1086. Donator to St. Evroult.
1.1.1. Raul III. de Mauvoisin, seigneur de Rosny, “Le Barbu”.
1.1.1.1. Raul IV. de Mauvoisin, s. a. 1177, seigneur de Rosny, “Le Barbu”, m. Agnès d’Aulnay, da. of Gautier II. d’Aunay. Sénéchal de Dammartin.
1.1.1.1.1. Guillaume II. Mauvoisin, s.a. 1200, seigneur de Rosny, m. 1171, Adeline de Maudétour.
1.1.1.1.1.1. Gui III. Mauvoisin, seigneur de Rosny (1201), m. Aélis de Porhoët.
1.1.1.1.1.1.1. Gui IV. Mauvoisin, s. a. 1252, seigneur de Rosny, cousin of Raoul, baron de Fougères, m. Julienne, dame de Tillières-sur-Avre, da. of Gilbert V. Crispin, seigneur de Tillières-sur-Avre, Damville et Bourth, and Aliénor de Vitré.
1.1.1.1.1.1.2. “Mauvoisin de Hercy” (a reasonable conjecture), m. Théophanie Pont de l´Arche, da. and co-coheir of Gilbert de Pont de l´Arche (C.M. Lesaulnier, ed.,”Recherches sur la Domesday”, p. 200, 1842). Théophanie’s sister, Isabella, m. William Ruffus.
1.1.1.1.1.1.2.1. Robert de Hercy.
1.1.1.1.1.1.2.1.1. Hugh de Hercy.
1.1.1.1.1.1.2.1.1.1. John de Hercy, sold the marriage of Robert, his son, and, if failing, of Thomas, his next son, to Richard Stanhope, Burgess of Newcastle, descendant of Thomas de Colville, and ancestor of the Earls Stanhope. John de Hercy’s descendant, Humfrey Hercy, m. Joanna, da. of John Stanhope, descendant of Richard Stanhope, aforesaid.
1.1.1.1.1.2. Guillaume de Mauvoisin. ‘It is possible that the William Mauvoisin who received Serquigny in 1204 was the brother, not son, of Guy Mauvoisin’ (Daniel Power, The Norman frontier in the twelfth and early thirteenth centuries. p. 556, 2004). William Mauvoisin, fl. 1204-35, Lord Of Serquigny, and of St-Clair-d’Arcey, cant. and arr. de Bernay,
1.1.1.1.1.1.1.1. Gui V Mauvoisin, seigneur de Rosny, m. Isabelle de Mello, da. of Dreu II. De Mello, lord of Saint-Bris and Villehardouin, and Helvise de Montbard, dame d’Epoisse, Givry and Chateau-Chinon; Sister of Dreu, lord of Saint-Bris and of Chateau-Chinon; Widow of Richard d’Harcourt, lord of Boissey-Le-Chatel. Armorial General of Brittany, p. 136, 1844, shows that the Brittany families of Hérisson or Hériçon were intermarried with the family of Mello, and bore d’argent, à trois hérissons de sable.

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