Sub-fonds NLW MSS 21287-386 - Iolo Morganwg MSS

Identity area

Reference code

NLW MSS 21287-386


Iolo Morganwg MSS


  • [16 cent.]-[?1841] (Creation)

Level of description


Extent and medium

100 volumes.

Context area

Name of creator

Archival history

Immediate source of acquisition or transfer

Content and structure area

Scope and content

Manuscripts, [16 cent.]-[?1841], mostly collected or written by Iolo Morganwg. They include transcripts of Welsh poetry, pedigrees, grammars, and manuscripts belonging to Robert Vaughan of Hengwrt, Lewis Morris, Gwallter Mechain, Ieuan Brydydd Hir, Thomas Glyn Cothi, Richard Morris and others; literary papers of Iolo Morganwg, including hymns and psalm-tunes, English and Welsh poetry and Bardic papers; other papers including diaries, memorandum books and notebooks; and accounts of his father, Edward Williams, senior.

Appraisal, destruction and scheduling


System of arrangement

Arranged according to NLW MSS reference numbers: NLW MSS 21287-21386.

Conditions of access and use area

Conditions governing access

Conditions governing reproduction

Language of material

Script of material

Language and script notes

Welsh, English, Latin, some Greek.

Physical characteristics and technical requirements

Finding aids

The descriptions are also available in NLW, List of Manuscripts from the collection of Iolo Morganwg among the Family Papers presented by Mr. Iolo Aneurin Williams and Miss H. Ursula Williams, London, 1953-4 (1978)

Allied materials area

Existence and location of originals

Existence and location of copies

Related units of description

Related descriptions

Notes area


Title based on contents.


Formerly Iolo A. Williams MSS 1-95.


Six leaves of a Welsh heraldic text ('Disgrifiad Arfau') have been inserted in NLW MS 13165B, to which they belonged; a few leaves of English poetry by and in the hand of Iolo Morganwg have been inserted in NLW MS 13170B; some 50 leaves, containing cywyddau by various poets, have been inserted in NLW MS 834B.


Preferred citation: NLW MSS 21287-386.

Alternative identifier(s)

Virtua system control number


Project identifier


Access points

Subject access points

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Description control area

Description identifier

Institution identifier

Llyfrgell Genedlaethol Cymru = The National Library of Wales

Rules and/or conventions used


Level of detail

Dates of creation revision deletion




Accession area

Related subjects

Related people and organizations

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Physical storage

  • Text: NLW MSS 21287-386.