St. Winefrid, Virgin of North Wales
"With other pious maidens, she served God under the direction of St. Beuno. She suffered death at the hands of the tyrant Caradoc, at the place since called Holywell, and there many miracles even in our own day there witness to the sanctity of St. Winefrid..."
Look down upon me Jesus, where before your face I kneel and, with burning soul, pray and beseech you to fix deep in my heart faith, hope and charity...
More. Her story reads like something from Gawain and the Green Knight.