What is "cadfan"

Cadfan or St Cadfan might refer to:

• The Battle of Cadfan, fought between English and Welsh armies in 1257
• Cadfan ap Iago, King of Gwynedd (7th century floruit)
• Saint Cadfan, founder of a monastery on Bardsey Island (6th century or 7th century floruit)
  • St Cadfan's Church, Tywyn in Mid Wales
  • The Cadfan Stone in the above church
• St. Cadfan, a diesel locomotive on the Talyllyn Railway