Picture: Theoliane · Public domain · Wikimedia Commons
Gerbold
French bishop
SaintPre-congregation
Feast: 7 December (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
690
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
Saint Gerbold (French: saint Gerbaud or saint Gerbold) (died c. 690 AD) was a French bishop venerated as a saint by the Catholic Church. He was a monk who founded the abbey of Livry in Normandy and later became bishop of Bayeux.
Summary from Wikipedia (CC BY-SA 4.0), until this page is written up in full.
The miracles
Limited information available on this saint.
Why that counted as sanctity
Limited information available on this saint.