Saint Cybi, or Cuby, was a 6th-century Cornish bishop, saint, and, briefly, king, who worked largely in Cornwall and North Wales: his biography is recorded in two slightly variant medieval 'lives'.
Seiriol
…historic monuments of Wales. Adjacent to them are the church and ruins of a monastery also dating back to Seiriol's day. According to legend, Seiriol and Saint Cybi were good friends, and would meet weekly near Llanerchymedd, at the Clorach wells. Saint Cybi would walk from Holyhead, facing the rising sun in the…
Mural of Cybi in Holyhead, Anglesey by artist Gary Drostle