She was a local saint of Chalcedon and the Council of Chalcedon ( 451 ) had taken place in a cathedral consecrated in her name .
The original Euphemia was a Christian martyr during the Diocletianic Persecution .
Euphemia was a local saint of Chalcedon and the Council of Chalcedon ( 451 ) had taken place in a cathedral consecrated in Euphemia 's name .
The original Euphemia was a Christian martyr during the Diocletianic Persecution .