High Quality Content by WIKIPEDIA articles! John de Breton (sometimes John Breton, John Bretun or John Brito; died c. 12 May 1275) was a medieval Bishop of Hereford. He served as a royal justice and sheriff before being nominated to Hereford. He is sometimes credited with the legal treatise Britton; but in its current form Breton cannot be the author as the work refers to laws written 15 years after the bishop`s death.