proper noun/koɾˈneljo/
Cornelio is masculine in Spanish.
Cornelius (biblical character); a male given name, equivalent to English Cornelius
“Y había un varón en Cesarea llamado Cornelio, centurión de la compañía que se llamaba la Italiana.” — At Caesarea there was a man named Cornelius, a centurion in what was known as the Italian Regiment.
From Latin Cornēlius.