EUPHROSYNE (9TH CENTURY)

'Euphrosyne', a daughter of Byzantine emperor Constantine VI, the last representative of the Isaurian dynasty, and Maria of Amnia. Constantine divorced her mother and send them both to a convent. In 820 she was taken from the convent and made to marry Michael II "Psellus", in order to strengthen his shaky dynastic claims.
The highly controversial marriage proved barren and after his death and the accession of her stepson Theophilus she again retired; however, she does appear to have been responsible for Theophilus's marriage to Theodora, who helped restore the veneration of icons in the empire. She also warned him of a rebellion in Constantinople whilst he was campaigning against the Arabs, which prompted his return.