Wiki information Dyfodwg:

Deceased Person, Person

Dyfodwg, or Tyfodwg, was a 6th-century Welsh saint. He is one of the three saints from whom the ancient parish of Llantrisant takes its name, and possibly the patron of the parish church of Llandyfodwg in Glynogwr, between Blackmill and Gilfach Goch...