Picture: Plechelmus at Dutch Wikipedia · Public domain · Wikimedia Commons
Plechelm
Irish Benedictine monk, missionary and saint
SaintIrelandBenedictinesPre-congregation
Feast: 15 July (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
601
Died
730
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
Plechelm, (Plechelm of Guelderland, Plechelm, also Pleghelm or Plechelmus; died 730), is honoured in both the Catholic Church and the Old Catholic Church as a patron saint of the Netherlands.
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.