Irina Godunova
Irina Feodorovna Godunova later Alexandra (1557–1603) was the wife of Tsar Feodor I Ivanovich (r. 1584–1598) and the sister of Tsar Boris Godunov (r. 1598–1605).
The precise dates of some of the events in Irina's life are uncertain; most sources indicate that she was picked by Ivan the Terrible to be the wife of the tsarevich Fedor in 1580 or 1581, although some sources say this occurred as early as 1574. At 23 or 24 (assuming the latter dates), she would have been considered old for a bride in Muscovy, where the common age for marriage was in the mid-teens, and it is not certain why she married so relatively late in life. She became Tsaritsa upon the coronation of her husband in 1584.