This work, first published in 1944, provides the most reliable texts of the Lives of Welsh Saints based upon the Cotton MS in the British Library from 1200. Out of print for over 50 years, this work is still the standard edition of these Lives and is still widely used by scholars today. As well as being the major text for our information concerning the Welsh saints it also contains some of the earliest Arthurian material and is the first to make Arthur a king.