NLW MS 20143A

NLW MS 20143A is a Welsh-language manuscript of the laws of Hywel Dda dating from the middle of the 14th century.

It includes a copy of the laws of court (the rights and duties of the king and his officers), in the Cyfnerth redaction, and some other legal material.

Drawings in the margins of the folios include symbols of the four authors of the Gospels (although those of Luke and John are transposed), a crucifixion scene, and beasts and creatures such as a mermaid, dragons, and peacocks.

The spine bears a 19th-century addition, the Latin words Leges Walliaae MS Saec.

In 1969, it was acquired by the National Library of Wales, Aberystwyth, and added to the General Manuscript Collection with the reference NLW MS 20143A.