Slave. He ran from his masters, and sought refuge in Miaranda monastery, Auvergne, France. He became a monk there, and later abbot. At one point he demanded that the Merovingian king, Thierry of Austrasia, release his Auvergnate prisoners; Portianus was so influential, the king agreed.
- 533 of natural causes
- monk breaking a cup from which a snake escapes – the snake represents poison, and sometimes leads to Portianus’ confusion with Saint Benedict
- monk surrounded by prisoners
- “Saint Portianus of Miranda“. Saints.SQPN.com. 22 August 2013. Web. 6 December 2013. <>