1. ANDRONICUS¹ DUCAS has an unknown birthdate. ^[4]
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JOHN2 DUCAS, m. MARIA _____.

2. JOHN² DUCAS (Andronicus¹), son of (1) Andronicus¹ DUCAS, was born between 910 and 1066, and died between 970 and 1176. He married MARIA _____. ^[4]
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ANDRONICUS3 DUCAS, d. in 1080; m. (HX-4) MARIA OF BULGARIA, daughter of (HX-3) Trojan OF BULGARIA.

3. ANDRONICUS³ DUCAS (John², Andronicus¹), son of (2) John² and Maria (_____) DUCAS, was born between 995 and 1061, and died in 1080^[4]. He married (HX-4) MARIA OF BULGARIA, daughter of (HX-3) Trojan OF BULGARIA. ^{[2, 4, 5]}
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IRENE4 DUCENA, b. about 1065; m. in 1080 (LA-4) ALEXIS I COMNENUS, BASILEUS OF THE EAST, b. in 1048[1], d. on 15 Aug. 1118[1], son of (LA-3) John COMNENUS.

4. IRENE⁴ DUCENA (Andronicus DUCAS³, John², Andronicus¹), daughter of (3) Andronicus³ and (HX-4) Maria (of BULGARIA) DUCAS, was born about 1065^[1], and died between 15 Jan. 1096 and 1176. She married in 1080, (LA-4) ALEXIS I COMNENUS, BASILEUS OF THE EAST^[3], son of (LA-3) John COMNENUS, who was born in 1048^[1], and died on 15 Aug. 1118^[1]. ^{[2, 4, 5]}
Children: See (LA-4) Alexis I COMNENUS, Basileus of the East