St Seiriol had his cell and holy well at Penmon on the south eastern shore of Anglesey. The icon shows St Cybi (left) and St Seiriol (right) whose prayers protected the whole island. In old age he retired to the little island of Ynys Seiriol, later call Priestholm, and now called Puffin Island.
In the nearby priory are 2 10C crosses.
