Theodora (wife of Romanos I)

[1] She became the mother-in-law to Constantine VII in May or June, 919 with the marriage of the young Emperor to her daughter Helena Lekapene.

Her husband Romanos was originally the Droungarios of the Fleet, before rising to become the de facto regent of the Empire after the marriage, when he was proclaimed basileopatōr.

She is the only wife of Romanos I mentioned in primary sources and is traditionally considered the mother of all his legitimate children.

However, "Familles Byzantines" (1975) by Jean-François Vannier interprets the comment to be correct and that both father and son had married daughters of Niketas, which would mean Theodora could not be the mother of Christopher.

The argument concludes that Christopher is the product of an earlier marriage and Theodora a second wife of Romanos.