Her mother unsuccessfully attempted to obtain the crown for Simeon ; defeated in her efforts , she retired to a convent and died in 1355 .
Five years later , Theodora 's father was murdered by strangulation .
Theodora 's mother unsuccessfully attempted to obtain the crown for Simeon ; defeated in her efforts , she retired to a convent and died in 1355 .
Five years later , Theodora 's father was murdered by strangulation .