Catholic
Saint William of Vercelli
Hermit · Founder of Montevergine
Italian hermit and founder of the monastery of Montevergine. He left no writings of his own; what we know comes from later lives. His feast falls on 25 June.
A richly-documented figure overflows with verbatim words and works; a sparsely-sourced one is handled honestly — what survives in the public domain, plainly shown, nothing padded.