These manuscripts have not been included as part of the Welsh Prose from 13th Century Manuscripts project, or the Welsh Prose 1350-1425 project. Most of them have not been digitized either.
Available on this website
H - Peniarth 164
Edited by G. Angharad Elias as her doctoral thesis. Text available here in the near future.
Z - Peniarth 259B
Edited in Sara Elin Roberts, Llawysgrif Pomffred: An Edition and Study of Peniarth MS 259B, (Leiden, 2011). Text available here.
S - BL Add. 22356
Edited in Christine James, Machlud Cyfraith Hywel:Golygiad Beirniadol ac Eglurhaol o Lsgr. BL Add. 22356 (S), (Texts and Studies in Medieval Welsh Law III, Seminar Cyfraith Hywel, Caergrawnt). Text available here.
Latin C – Harleian 1796
Edited in Paul Russell, Welsh Law in Medieval Anglesey: British Library Harleian MS 1796 (Latin C), (Testunau ac Astudiaethau yng Nghyfraith Hywel II, Seminar Cyfraith Hywel, Caergrawnt, 2011). Text available here.
K - Peniarth 40
Lew - Peniarth 39
As - Peniarth 175
Most of the text available in Ancient Laws and Institutes of Wales, Book IX, and a comparable text of most of the manuscript in Llawysgrif Pomffred.
Mor - Peniarth 36C
The text available in Ancient Laws and Institutes of Wales, Book IX, and a comparable text of most of the manuscript in Llawysgrif Pomffred.
F - Peniarth 34
Q - Wynnstay 36
P - Peniarth 259A
Ep - Peniarth 258
Tim - Llanstephan 116
Published by Timothy Lewis, The Laws of Howel Dda from Llanstephan MS. 116, (University of Wales Welsh Texts 1, London, 1912).
Llan - Llanstephan 29
Latin A – Peniarth 28
Digital copy available at Y Drych Digidol
Latin B – Cotton Vespasian E XI 1
Latin D – Rawlinson C 821
Latin E – Corpus Christi College, Cambridge 454
Digital copy available at Parker Library, Cambridge