When was the sister of Theodora Porphyrogenita died who was reigned as Byzantine Empress alongside her sister?
Zoë Porphyrogenita Zoë ( "life" ] ; 978 – June 1050) reigned as Byzantine Empress alongside her sister Theodora from April 19 to June 11, 1042. She was also enthroned as the Empress Consort to a series of co-rulers beginning with Romanos III in 1028 until her death in 1050 while married to Constantine IX.
Athanasia of Aegina Saint Athanasia of Aegina (born circa 790 in Aegina - died 14 August 860, Timia, Greece) was a saint who lived in the Byzantine Empire and was for a while adviser to the Empress Theodora II.