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.
Galla (wife of Theodosius I) Flavia Galla (died 394 CE) was an Empress of the Roman Empire and a Princess of the Western Roman Empire. She was the second Empress consort of Theodosius I. She was daughter of Valentinian I and his second wife Justina.