High Quality Content by WIKIPEDIA articles! Boyarinya Kseniya Ioannovna (Ivanovna) Shestova (Russian: Ксения Иоанновна (Ивановна)) was a spouse of Fyodor Romanov and the mother of Mikhail Romanov. The origin of Xeniya Ivanovna has been disputed by genealogists for centuries. It is currently accepted that her surname was Shestova (Шестова; rather than Shastunova, as was previously believed) and that her grandfather was Timofey Gryaznoy, a rich landowner from Uglich.