Sir Owen Morgan Edwards 
The Mabinogion 

More than half a century ago Lady Charlotte Guest gave The Mabinogion to English readers in the form which, probably, will ever most delight them. Her transcript of the Red Book of Hergest was not perfect, she found the meaning of many a Welsh phrase obscure, but her rendering is generally very accurate; and the Celtic tales retain in their new dress much of the charm, which so often evades the translator, of a perfect style formed by generations of narrating.
The Red Book of Hergest, from which The Mabinogion are taken, is a collection of tales and poems written during the fourteenth century. Some of the Mabinogion in it have been reconstructed in Norman and Crusading times, but they contain reminiscences of a more distant period, often but half understood by the later story-teller.