Euphrosyne Synadene

Euphrosyne Synadene was a fourteenth-century Byzantine noblewoman, daughter of the megas stratopedarches John Synadenos and Theodora Palaiologina, herself a niece of Michael VIII. She was pledged to the church from infancy.

After her father's death, her mother became a nun under the name Theodoule and founded in Constantinople the Convent of the Theotokos Bebaia Elpis, ‘Certain Hope’; Euphrosyne took vows with her and became its co-founder. Theodora drew up the convent's first typikon, or rule, between 1327 and 1347. After her mother's death, Euphrosyne wrote a second rule and appended it to the first, largely revising what Theodora had set down.