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.
Theodore (brother of Heraclius) Theodore (Latin: "Theodorus" , Greek: Θεόδωρος ; fl. c. 610 – 636) was the brother (or half-brother) of the Byzantine emperor Heraclius (r. 610–641), a "curopalates" and leading general in Heraclius' wars against the Persians and against the Arab invasions.