Manuscripts
Manuscript:
Philadelphia, Library Company, MS 8680.O
- s. xivex–xvi2
Guy, Ben, “A Welsh manuscript in America: Library Company of Philadelphia, 8680.O”, National Library of Wales Journal 36:1 (2014): 1–26.
Library of Wales: <link>
Williams, Gruffydd Aled, “Mwy am lawysgrif Gymraeg yn U.D.A.: the Public Library Company of Philadelphia, llsgr. 8680.O”, Llên Cymru 34 (2011): 248–250.
Thomas, Peter Wynn [ed.], D. Mark Smith, and Diana Luft [transcribers and encoders], Welsh prose (Rhyddiaith Gymraeg) 1300–1425, Online: Cardiff University, 2007–present. URL: <http://www.rhyddiaithganoloesol.caerdydd.ac.uk>.
“Philadelphia MS. 8680”
Roberts, Brynley F., “Un o lawysgrifau Hopcyn ap Tomas o Ynys Dawy”, Bulletin of the Board of Celtic Studies 22:3 (1967, 1966–1968): 223–228.
Results for Philadelphia, Library Company, MS 8680.O (1)
- s. xivex–xvi2
- Hywel Fychan ap Hywel Goch
