Clas Myrddin, or
Merlin's Enclosure, is an early name for
Great Britain given in the Third Series of
Welsh Triads.
[Rhys: Hibbert Lectures, p. 168.] It is implied that it is the oldest name, as opposed to "
Albion", but the implication is not wholly credible.
[Stephen Thomas Knight, Merlin: Knowledge and Power Through the Ages, p. 6]
