Matilda of Požega (born c. 1210 - died after 1255) was daughter of Margaret of Courtenay (d. 1270), princess of the Latin Empire of Constantinople, from her first marriage with Raoul III, Lord of Issoudun.
[5] Matilda's mother Margaret was daughter of Peter Courtenay (d. 1219), Latin Emperor of Constantinople, and his second wife Yolanda of Flanders.
[3][4] Regarding her father, some earlier researches assumed that she was born from her mothers second marriage, with Henry I, Count of Vianden (d. 1252),[6][7] but later scholars pointed out that Margaret's first husband Raoul III of Issoudun did mention their "little daughter" (lat.
[8][5][9] Their daughter Maria was married (c. 1253-1255) to Anselm de Cayeux, who later (before 1269) became camerlengo of the Latin Emperor Baldwin II of Constantinople, Matilda′s uncle.
[10][11] Various issues regarding the attribution of data related to two persons (father and son) who had the same name (Anselm de Cayeux),[12] have been discussed in several genealogical studies, since some napolitan and ragusan sources from the 1280s suggest that Matilda′s daughter Maria had a sister (lat.