He was a contemporary and friend of Dafydd ap Gwilym, who composed a marwnad upon him. From this poem we gather that he was a native of Powys Wenwynwyn and was killed by a friend's sword at Dolgelley, where he lies buried. For his poetry see Jones and Lewis, Mynegai, and Brogyntyn MS. 2 in the National Library of Wales. Rhetorical compositions attributed to him and entitled ‘Breuddwyd Gruffudd ab Adda ap Dafydd,’ and ‘Trwstaneiddiwch Gruffudd ab Adda ap Dafydd,’ have been published by D. Gwenallt Jones in his Areithiau Prôs, 18, 33. A musical composition under the title ‘Caingc Ruffudd ab Adda’ appears in the Myvyrian Archaiology.
Published date: 1959
Article Copyright: http://rightsstatements.org/page/InC-RUU/1.0/