Anseau de Cayeux

[1][2][3] A descendant of the lords of Cayeux-sur-Mer, according to Geoffrey of Villehardouin he took up the cross in spring 1200 along with Hugh IV, Count of Saint-Pol, and remained in the latter's entourage until the fall of Constantinople to the Fourth Crusade in April 1204.

Along with Conon de Béthune he led in 1207 the unsuccessful negotiations in the Pagasetic Gulf with the Lombard barons under Ravano dalle Carceri, who refused to accept the suzerainty of Emperor Henry.

In 1247, he assigned custody over the city of Tzurulon to his wife Eudokia, in hope that it will not be attacked by John III Doukas Vatatzes, who was married to Eudokia′s sister Irene Laskarina.

[9][10] In 1269-1270, certain "Anselinus de Chaus, Camerarius Imperii Romani", titular Imperial Camerlengo, or Chamberlain in the service of the same, now exiled Latin Emperor Baldwin II, was residing at the court of king Charles I of Naples.

[11][12] While residing in the Kingdom of Naples, he also kept contacts with king Stephen V of Hungary (1270-1272): "Anselinus de Chaus dilectus amicus vult mietere nuntium ad magnificum principem Stephanum, illustrem regem Ungarie".

[17] Advanced age would exclude the possibility that even later data on Anseau de Chau, who served in 1273-1274 as Charles of Naples' vicar-general in Albania, could refer to the participant of the Fourth Crusade (1202-1204) or the Regent of 1237, and therefore it is believed that those data must refer to the youngest Anseau, the Chamberlain, who would be married (since 1253-1255) to Maria, daughter of John Angelos of Syrmia, and later (1269) would serve as camerlengo ("Camerarius Imperii Romani"), and also as governor of Albania (1273-1274).