Saint Gwinear was a Celtic martyr, one of only two early Cornish saints whose biographies survived the Reformation. The Life of Gwinear was written in the early 14th century by a priest named Anselm, and has sometimes been printed among Saint Anselm's works. His feast day is March 23. The Victorian clergyman, hagiographer and antiquary Sabine Baring-Gould believed that an Irish group, driven from their homeland in Ossory in the fifth century, invaded Penwith (="pen-gwaeth", the "bloody headland"), and that the legend of Gwinear was a distorted recollection of these events.