White Book of Rhydderch
Welsh manuscript written c. 1350
The White Book of Rhydderch (Welsh: Llyfr Gwyn Rhydderch, National Library of Wales, Peniarth MS 4-5) is one of the most notable and celebrated surviving manuscripts in Welsh. Mostly written in southwest Wales in the middle of the 14th century (c. 1350) it is the earliest collection of Welsh prose texts, though it also contains some examples of early Welsh poetry. It is now part of the collection of the National Library of Wales, having been preserved in the library at Hengwrt, near Dolgellau, Gwynedd, of the 17th century antiquary Robert Vaughan, who inherited it from the calligrapher John Jones and passed it to his descendants. The collection later passed to the newly established National Library of Wales as the Peniarth or Hengwrt-Peniarth Manuscripts.
What was one manuscript was divided into two in the medieval period and has been bound as two separate volumes, known as Peniarth MS 4 and Peniarth MS 5. Peniarth MS 4 contains the most important material: medieval Welsh tales now collectively known as the Mabinogion. Peniarth MS 5 (the first part of the original manuscript) contains Christian religious texts in Welsh, mostly translated from Latin and French, including Lives of various saints and a tale of Charlemagne.
The White Book was copied in the mid 14th century, most probably for Rhydderch ab Ieuan Llwyd (c. 1325–1400) from Parcrhydderch in the parish of Llangeitho in Ceredigion.
“White Book of Rhydderch” enters the record as welsh manuscript written c. 1350. Crown Archives preserves that source wording while asking what White, Book and Rhydderch can confirm, complicate or overturn.
Why this record matters
“White Book of Rhydderch” is worth following because a concise public description often conceals a longer documentary argument. Here, White, Book and Rhydderch provides the most credible route into that argument.
Object files, edition statements, performance records and contemporary criticism preserve different stages of the work’s history. The source revision retrieved here is dated May 12, 2026. The linked authority identifier is Q1315675. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1350, 1325 and 1400.
Later fame can flatten the distinction between original context, subsequent adaptation and institutional collecting history. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Three-step research path
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This entry incorporates text from “White Book of Rhydderch” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.