누가 알렉시오스 3세 앙겔로스와 결혼 했습니까?

알렉시오스 3세 앙겔로스(그리스어:Αλέξιος Γ' Άγγελος, 1153년 – 1211년)는 동로마 황제로 1195년부터 1203년까지 황제였다. 앙겔로스 왕조의 일원이다.

Euphrosyne Doukaina Kamaterina or better Kamatera (Greek: Εὐφροσύνη Δούκαινα Καματερίνα ἢ Καματηρά, romanized: Effrosýni Doúkaina Kamaterína í Kamatirá, c. 1155 – 1211) was a Byzantine Empress by marriage to the Byzantine Emperor Alexios III Angelos.

Euphrosyne was the daughter of Andronikos Doukas Kamateros, a high-ranking official who held the titles of megas droungarios and pansebastos and his wife, an unknown Kantakouzene. She was related to the Emperor Constantine X and Irene Doukaina, empress of Alexios I Komnenos. Both of her brothers had rebelled against Andronikos I Komnenos; one was imprisoned and the other was blinded.