Among the sparse information about his life, it is known that he wrote the epitaph for Caedwalla, the king of Wessex who was buried in St. Peter's Basilica in Rome.

The pope, however, ruled in favour of Armentarius, perhaps due to a privilege granted at the time of Evodius or because Pavia was the capital of the Kingdom of the Lombards.

Paul the Deacon, about fifty years after his death, remembered him as a saint venerated all over Italy.

[1] A poem written about ten years after his death, De laudibus Mediolani, praises him and informs us that he was buried in the Basilica of Sant'Ambrogio.

[5][6] A late tradition, with no historical basis, associates Benedict with the Milan's family of the Crespi.