ANSEAU [IV] de Cayeux ([1165/80]-after Jun 1221). Belleval names Arnoul and Anseau as sons of Arnoul de Cayeux and his wife but cites no primary source[1461]. [Champagne states that "Anselme de Chaieu" witnessed a charter dated 5 Jun 1190 under which "Bauduin d´Hermelinghen" donated property to Beaulieu abbey[1462]. He identifies this person as Anseau [IV], but from a chronological point of view it is also possible that he was Anseau [III].] "Anselme de Cayeu ´le jeune´ et Guillaume son frère" subscribed a charter 1195 under which "Bauduin d´Assonval" donated property to Clairmarais abbey[1463]. "Dominum Arnulfus de Kaieu et dominam Adelidem de Bavelingem uxorem eius" donated property to the abbey of Andres, with the consent of "filiorum meorum Anselmi, Willelmi", by charter dated 1196[1464]. Seigneur de Longvilliers. "…Ansellus de Keu…" subscribed the charter dated Aug 1201 under which Renaud Comte de Boulogne agreed with Philippe II King of France the future betrothal of his daughter Mathilde to the king´s son Philippe[1465]. "Anselmus de Kayeu dominus de Longovillari" confirmed a donation to the abbey of Clairmarais made by "Willelmus de More" by charter dated 1206[1466]. Champagne states that "Ansiau de Caieu, pair du Boulonnais, vassal du comte Renaud" is one of the principle personnages in the "roman d´Eustache le Moine", celebrated pirate from Boulogne, which was written in [1225/30], in which he is reported as having accompanied Richard I King of England on crusade, served faithfully Renaud Comte de Dammartin, and fought at his side at the battle of Bouvines in Jul 1214[1467]. La Gorgue-Rosny also states that "Anselme [de Cayeux]" was one of the knights "du comté de Boulogne" at the battle of Bouvines but he does not cite the corresponding primary source[1468]. "Ansellus de Longvillari" witnessed the charter dated Jun 1221 under which Guillaume de Saint-Omer donated property to the abbey of Saint-André-au-Bois[1469]. Adam Bishop of Morins confirmed the possessions of Notre-Dame de Licques, including the donation of "decimam in parrochia de Audrewic" made by "Manassetis et Arnulfi de Kaieu et uxoris eius Aelidis et filiorum eorum" with the consent of "eorumdem domino Arnulfo comite Gisnensi", by charter dated Feb 1224[1470].m ([1200]) as her second husband, ALAIS de Saint-Omer, widow of BAUDOUIN [I] de Créquy, daughter of GUILLAUME [IV] Châtelain de Saint-Omer, Seigneur de Fauquembergues & his wife Ida d'Avesnes (-after 1218). The late 13th century genealogy by Balduinus de Avennis names "Alaydis" as fourth daughter of "castellano Sancti-Audomari domino Wilelmo" and his wife, adding that she married "Balduino de Creki" (as his second wife) and secondly "domino Anselmo de Lomviler domino de Kahen", naming her descendants by both marriages[1471]. Adam Bishop of Morins confirmed the possessions of Notre-Dame de Licques, including the donation of "decimam in parrochia de Audrewic" made by "Manassetis et Arnulfi de Kaieu et uxoris eius Aelidis et filiorum eorum" with the consent of "eorumdem domino Arnulfo comite Gisnensi", by charter dated Feb 1224[1472]. Anseau [IV] & his wife had three children
