Agents
Lewys Glyn Cothi
  • fl. 1447–1489
  • Welsh poets
  • Glyn Cothi
See also references for related subjects.
Oxford dictionary of national biography, Online: Oxford University Press. URL: <http://www.oxforddnb.com>. 
comments: General editors include Lawrence Goldman, et al.
[id. 16,571.] Johnston (Dafydd R.), ‘Lewys [Llywelyn] Glyn Cothi (fl. 1447–1489)’ direct link
Welsh biography online, Online: National Library of Wales. URL: <https://biography.wales>.
Jones (Evan David), ‘LEWIS GLYN COTHI or LLYWELYN Y GLYN (fl. 1447-1486), one of the greatest of the 15th century Welsh bards’ direct link
Johnston, Dafydd R., Llên yr uchelwyr: hanes beirniadol llenyddiaeth Gymraeg 1300–1525, Cardiff: University of Wales Press, 2005.  
abstract:
Beirdd yr Uchelwyr in the fourteenth and fifteenth centuries are considered to be the pinnacle of the bardic tradition in Wales in the Middle Ages. This book gives a comprehensive look at the period’s literature in all its aspects. Attention is given to masters of the cywydd, such as Dafydd ap Gwilym, Iolo Goch, Guto’r Glyn, Dafydd Nanmor and Lewys Glyn Cothi.
Johnston, Dafydd R., Gwaith Lewys Glyn Cothi, Cardiff: University of Wales Press, 1995.  
abstract:
An edition in modern orthography of the complete work of a foremost fifteenth century Welsh poet, including notes, vocabulary, indices and an introduction discussing the poet’s life and work.
Jones, Evan David, Lewys Glyn Cothi: detholiad, Cardiff: University of Wales Press, 1984.
Davies, Walter, and John Jones, The poetical works of Lewis Glyn Cothi:  a celebrated bard, who flourished in the reigns of Henry VI, Edward IV, Richard III, and Henry VII, Oxford, London: Cymmrodorion, 1837.
HathiTrust – originally from Google Books: <link>