Proper noun
Euphemia
A female given name from Ancient Greek.
Walter's brother, David, earl of Strathearn and Caithness had died before 5 March 1389 when his daughter Euphemia was first recorded as countess of Strathearn. Source: Internet
Theodore emphasizes the high standing of her parents, Sergios and Euphemia, who died in the plague of 747/48. Source: Internet