(Saint) Martyr (August 4) (Date uncertain) A Martyr honoured at Cologne. It is not at all certain that he is other than the Saint Protasius who was a fellow-sufferer with Saint Gervasius at Milan. Some Relics transported from Milan into Germany may have given origin to the special Feast of August 4, which is wanting in the more ancient Registers.
- Monks of Ramsgate. “Protasius”. , 1921. CatholicSaints.Info. 4 August 2016. Web. 21 January 2017. <>