DOI: 10.20391/40837b6f-1887-4afd-9c6e-9b7e3a122693
title: Prosiect Achyddol Bartrum
title: Bartrum Genealogical Project

description: Sail y prosiect hwn yw llafur cariad Dr P C Bartrum, gŵr heb unrhyw gysylltiad â Chymru a aned yn Hampstead, Llundain, ac a fu farw yn 2008 yn gan mlwydd oed. Meteorolegydd ydoedd wrth ei alwedigaeth hyd ei ymddeoliad yn 1955, ond serch hynny, ef oedd, yng ngeiriau Dr Michael Siddons, 'pennaf ysgolhaig achyddiaeth Gymreig ganoloesol' (ysgrif goffa yn Studia Celtica 43 (2009) 221-2). Er 1929 bu’n casglu gwybodaeth am achau’r Cymry o weithiau cynnar megis Brut y Tywysogion ac o lawysgrifau fel Harley 3859 (a gedwir yn y Llyfrgell Brydeinig) sy’n dyddio o tua 1100 a llawysgrifau eraill yn dyddio gan mwyaf o’r 15fed ganrif ymlaen, rhai a luniwyd gan yr arwyddfeirdd, sef y beirdd a oedd yn arbenigwyr ar hanes achyddol yr uchelwyr.

Yn 1974 cyhoeddodd Dr Bartrum gyfres o 8 gyfrol o dan y teitl Welsh Genealogies AD 330-1400 (WG1) (Gwasg Prifysgol Cymru), ac yn 1983 cyhoeddodd 18 cyfrol fel dilyniant i’r gyfres gyntaf, Welsh Genealogies AD 1400-1500 (WG2) (Llyfrgell Genedlaethol Cymru).

Ers eu cyhoeddi bu Dr Bartrum yn ychwanegu atynt yn helaeth ac yn eu cywiro. Trosglwyddodd ei set bersonol ef ei hun o’r cyfrolau i ofal yr Adran Gymraeg lle bu tîm o ymchwilwyr yn sganio’r deunydd yn electronaidd er mwyn ei gyhoeddi ar y we ac ar DVD.

Archive Cyff-Cyfl contains the introduction with all abbreviations etc to Welsh Genealogies 300-1400 (WG1) and Welsh Genealogies 1400-1500 (WG2).

Archives CyffA to CyffY are colour scans of the entire contents of WG1; and archives WG1Ind1 to WG1Ind11 contain the indices to those volumes.
N.B. Plates 32-40 of CyffRh were left blank by Dr. Bartrum.

Archives Tab1 to Tab9 are colour scans of the entire contents of WG2; and archives WG2Ind1 to WG2Ind23 contain the indices to those volumes.
description: The Bartrum Project is based on the work of Dr P. C. Bartrum who died in 2008 at the age of 100. A native of Hampstead, London, he had no links with Wales whatsoever, and worked as meteorologist until his retirement in 1955. Nevertheless, in the words of Dr Michael Siddons, he became 'the foremost scholar of medieval Welsh genealogy' (obituary in Studia Celtica 43 (2009) 221-2).

Since 1929 he collected information about Welsh ancestry from early works such as Brut y Tywysogion, manuscripts such as Harley 3859 (which is kept at the British Library) which dates from around 1100, and other manuscripts largely from the 15th century onwards, which were compiled by heraldic bards, poets who were experts in the ancestral history of noble families.

In 1974 Dr Bartrum published an 8 volume series under the title Welsh Genealogies AD 300-1400 (WG1) (University of Wales Press), and in 1983 he published a further 18 volumes, Welsh Genealogies AD 1400-1500 (WG2) (National Library of Wales).

Since their publication Dr Bartrum revised the work adding significant amendments and corrections. He then handed his own emended typescript over to the Welsh Department where a team of researchers started on the work of electronically scanning all the work so that it can be published on-line and as a DVD.

Archive Cyff-Cyfl contains the introduction with all abbreviations etc to Welsh Genealogies 300-1400 (WG1) and Welsh Genealogies 1400-1500 (WG2).

Archives CyffA to CyffY are colour scans of the entire contents of WG1; and archives WG1Ind1 to WG1Ind11 contain the indices to those volumes.
N.B. Plates 32-40 of CyffRh were left blank by Dr. Bartrum.

Archives Tab1 to Tab9 are colour scans of the entire contents of WG2; and archives WG2Ind1 to WG2Ind23 contain the indices to those volumes.