''Esboniadau ar Gyfraith Hywel Dda'' (Peniarth 164) is a volume of commentaries on the

Laws of Hywel Dda ''Cyfraith Hywel'' (; ''Laws of Hywel''), also known as Welsh law ( la, Leges Walliæ), was the system of law practised in medieval Wales before its final conquest by England. Subsequently, the Welsh law's criminal codes were superseded by the ...

from the late fourteenth century that is known as 'siglum H'. The manuscript contains almost 500 triads and some unique material, but a large part of it is illegible because of the oak apples stains conferred on it by John Jones, Gellilyfdy. Sometime before 1619 'H' was bound in a single volume with another text of the Laws of Hywel Dda, the

Black Book of Chirk The ''Black Book of Chirk'' ( cy, Llyfr Du o'r Waun) is a 13th-century Welsh-language manuscript, known also as the Chirk Codex. It is Peniarth 29 of the National Library of Wales, and deals with legal and historical matters. It contains also an e ...

(Peniarth 29), and remained so until after 1869. Manuscript H includes the transcript of the Black Book of Chirk that was partially copied by John Jones in Llanstephan 121. Llanstephan 121 also includes sections of the Ancient Laws from Peniarth 278, which is transcription of the Black Book of Chirk in the hand of Robert Vaughan. Peniarth 164 is kept at the

National Library of Wales The National Library of Wales ( cy, Llyfrgell Genedlaethol Cymru), Aberystwyth, is the national legal deposit library of Wales and is one of the Welsh Government sponsored bodies. It is the biggest library in Wales, holding over 6.5 million boo ...

in the Peniarth Manuscripts Collection.

References

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References

Further reading