Sonna of Britonia (?–646–?) was a medieval Britonian priest in Galicia who signed at the Seventh Council of Toledo.[1]
- ^ The Catholic Encyclopedia 1913 - Some authorities have sought to fix the date of the foundation of this diocese (under its primitive name of Britonia) earlier than the second half of the ... Sonna, his successor, was one of the bishops who signed at the Seventh Council of Toledo ..