Chalcedonius
Could not find Chalcedonia in Logeion dictionaries.
Chalcedonia Proper-name adjective: neuter nominative plural, Proper-name adjective: neuter vocative plural, Proper-name adjective: neuter accusative plural, Proper-name adjective: feminine ablative singular, Proper-name adjective: feminine nominative singular, Proper-name adjective: feminine vocative singular of Chalcedonius
Chalcēdonius, a, um, s. Calchēdon.