No likeness on file
Cwyllog
6th-century Welsh saint
SaintAngleseyPre-congregation
Feast: 7 January (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
550
Died
—
unknown
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
Saint Cwyllog (or Cywyllog) was a Christian holy woman who was active in Anglesey, Wales, in the early 6th century. The daughter, sister and niece of saints, she is said to have founded St Cwyllog's Church, Llangwyllog, in the middle of Anglesey, where a church is still dedicated to her.
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.