Anna of Bulgaria

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From Wikipedia, the free encyclopedia for Romanos_IV_Diogenes

By his first wife Anna, a daughter of Alusian of Bulgaria, Romanos IV Diogenes had at least one son: Constantine Diogenes, who was married to Theodora, sister of Alexios I Komnenos.[36] This marriage was arranged by Anna Dalassena after the death of Romanos IV, but it was short-lived, as Constantine perished under the walls of Antioch in 1073 while serving with his brother-in-law Isaac Komnenos.