Photograph of Patrick Sims-Williams.Patrick Sims-Williams

Professor of Celtic Studies
MA (Cantab.), PhD (Birmingham), FBA


Office: D19, Hugh Owen Building
Phone: +44 (0)1970 622137


Professor Sims-Williams recently completed a book on Irish influence on medieval Welsh literature which will be published by Oxford University Press in 2010. He also does research on the early Celtic languages, including Old Irish, Old and Middle Welsh, and the ancient Continental Celtic languages. He recently published a two-volume study of Roman inscriptions containing Celtic personal names, jointly with Marilynne E. Raybould (2007, 2009),  and he is currently writing the linguistic commentary for the third and final volume of A Corpus of Early Medieval Inscribed Stones and Stone Sculpture in Wales (2007- ). In 2009 he delivered the John V. Kelleher Lecture in Harvard University on ‘How our understanding of early Irish literature has progressed’. He has edited Cambrian Medieval Celtic Studies since 1981. He is a Fellow of the British Academy and directs the Academy’s research project on the Development of the Welsh Language (Datblygiad yr Iaith Gymraeg).




Sims-Williams, P. 2013. Variation in Middle Welsh Conjugated Prepositions: Chronology, Register and Dialect. Transactions of the Philological Society 111 (1) pp. 1-50. 10.1111/j.1467-968X.2012.01311.x



Sims-Williams, P. 2012. Bronze- and Iron-Age Celtic-speakers: what don't we know, what can't we know, and what could we know? Language, genetics and archaeology 1998-2008. Antiquaries Journal.,


Sims-Williams, P. 2012. Celtic Civilization: Continuity or Coincidence? Cambrian Medieval Celtic Studies 64 pp. 1-45. Other



Sims-Williams, P. 2011. Irish Influence on Medieval Welsh Literature., Oxford University Press

Sims-Williams, P. 2011. Rhai Addasiadau Cymraeg Canol o Sieffre o Fynwy., Canolfan Uwchefrydiau Cymreig a Cheltaidd, Aberystwyth


Sims-Williams, P. 2011. Celto-Etruscan Speculations. In E. Luján, J. Alonso (eds), A Greek Man in the Iberian Street: Papers in Linguistics and Epigraphy in Honour of Javier de Hoz. Innsbrucker Beiträge zur Sprachwissenschaft, vol. 140, Institut für Sprachen und Literaturen pp. 275-284.

Sims-Williams, P. 2011. Tochmarc Becfhola: a "peculiarly confused tale"? CSANA Year-Book.,

Conference contribution

Sims-Williams, P. 2011. Tochmarc Becfhola: A “Peculiar Confused Tale”? CSANA Year-Book, 8-9: Proceedings of the Celtic Studies Association of North America., Colgate University Press pp. 228-234.


Sims-Williams, P. 2011. Shrewsbury School MS 7 and the Breton Lays. Cambrian Medieval Celtic Studies 60 pp. 39-80.



Sims-Williams, P. 2010. The spread of "sandhi h-" in thirteenth-century Welsh. Transactions of the Philological Society 108 (1) pp. 41-52. 10.1111/j.1467-968X.2009.01222.x

Sims-Williams, P. 2010. The European Reference Index for the Humanities (ERIH): Editorial. Cambrian Medieval Celtic Studies 58 pp. 1-8.



Sims-Williams, P., Raybould, M.E. 2009. Introduction and Supplement to the Corpus of Latin Inscriptions of the Roman Empire Containing Celtic Personal Names., Cambrian Medieval Celtic Studies Publications

Falileyev, A., Sims-Williams, P.P. 2009. Celtic Dacia: Personal names, place-names and ethnic names of Celtic origin in Dacia and Scythia Minor., Cambrian Medieval Celtic Studies Publications


Sims-Williams, P. 2009. Celto-Iranica. in Exegisti Monumenta: Festschrift in honour of Nicholas Sims-Williams, edited by Werner Sundermann, Almut Hintze, and François de Blois, Iranica, 17 (Wiesbaden: Harrassowitz, 2009), pp. 463-67.,

Sims-Williams, P. 2009. The God Ialonos in Britain and Gaul. In R. Haeussler, A. King (eds), Continuity and Innovation in Religion in the Roman West, II. Journal of Roman Archaeology, Supplementary Series, 67, Volume 2, (Portsmouth, Rhode Island 2008), pp. 83-85.



Sims-Williams, P.P. 2008. Arysgrifau Diweddarach a'r Ieithoedd Arnynt. In P. Wakelin, R. Griffiths (eds), Trysorau Cudd: Darganfod Treftadaeth Cymru. Trysorau Cudd: Darganfod Treftadaeth Cymru, Royal Commission on the Ancient and Historical Monuments of Wales pp. 116-117.

Sims-Williams, P.P. 2008. The Problem of Spirantization and Nasalization in Brittonic Celtic. In A. Lubotsky, J. Schaeden, J. Wiedenhof (eds), Evidence and Counter-Evidence: Essays in honour of Frederik Kortlandt I, Baltic and Indo-European Linguistics, Studies in Slavic and General Linguistics, 32. Evidence and Counter-Evidence: Essays in honour of Frederik Kortlandt, I Baltic and Indo-European Linguistics, pp. 509-525.

Sims-Williams, P.P. 2008. Early Inscriptions and their Language. In P. Wakelin, R. Griffiths (eds), Hidden Histories: Discovering the Heritage of Wales. Hidden Histories: Discovering the Heritage of Wales, pp. 102-103.

Sims-Williams, P.P. 2008. Later Inscriptions and the Use of Language. In P. Wakelin, R. Griffiths (eds), Hidden Histories: Discovering the Heritage of Wales. Hidden Histories: Discovering the Heritage of Wales, pp. 116-117.

Sims-Williams, P.P. 2008. Arysgrifau Cynnar a'u Hiaith. In P. Wakelin, R. Griffiths (eds), Trysorau Cudd:Darganfod Treftadaeth Cymru. Trysorau Cudd:Darganfod Treftadaeth Cymru, pp. 102-103.


Sims-Williams, P.P. 2008. Kel'tomanija i Kel'toskepticism. Novoe Literaturnoe Obozrenie : Teorija i Istorija Literatury, Kritika i Bibliografija 57 pp. 179-191.



Sims-Williams, P. 2007. Studies on Celtic Languages before the Year 1000., Cambrian Medieval Celtic Studies Publications Cadair

Raybould, M., Sims-Williams, P. 2007. The geography of Celtic personal names in the Latin inscriptions of the Roman Empire., Cambrian Medieval Celtic Studies Publications Cadair Other

Raybould, M., Sims-Williams, P. 2007. A Corpus of Latin Inscriptions of the Roman Empire containing Celtic personal names., Cambrian Medieval Celtic Studies Publications Cadair



Sims-Williams, P. 2006. Ancient Celtic Place-Names in Europe and Asia Minor: Publications of the Philological Society, 39., John Wiley & Sons Cadair



Sims-Williams, P. 2005. The Iron House in Ireland: H.M.Chadwick Memorial Lectures., Cambridge University Press Cadair



Sims-Williams, P. 2002. The Celtic Inscriptions of Britain: Phonology and Chronology, c. 400-1200, Publications of the Philological Society, 37., John Wiley & Sons Cadair



Sims-Williams, P. 1990. Religion and Literature in Western England, 600-800., Cambridge University Press, Cambridge 10.1017/CBO9780511553042 Other


Sims-Williams, P. 1990. Dating the Transition to Neo-Brittonic: Phonology and History, 400-600. In A. Bammesberger, A. Wollmann (eds), Britain 400-600: Language and History. Anglistische Forschungen, Universitätsverlag Winter, Heidelberg pp. 217-261.

Sims-Williams, P. 1990. Some Celtic Otherworld Terms. In A. Matonis, D. Melia (eds), Celtic Language, Celtic Culture: A Festschrift for Eric P. Hamp., Ford & Bailie, Van Nuys, California pp. 57-81.

Sims-Williams, P. 1990. Irish Elements in Late Medieval Welsh Literature: The Problem of Cuhelyn and Nyf. In M. Ball, J. Fife, E. Poppe, J. Rowland (eds), Celtic Linguistics/Ieithyddiaeth Geltaidd: Readings in the Brythonic Languages, Festschrift for T. Arwyn Watkins. Current Issues in Linguistic Theory, John Benjamins Publishing Company, Amsterdam pp. 277-295.


Sims-Williams, P. 1990. Cú Chulainn in Wales: Welsh Sources for Irish Onomastics. Studia Celtica 21 pp. 620-633. Other



Sims-Williams, P. 1989. The Irish Geography of Culhwch and Olwen. In D. O Carrain, L. Breatnach, K. McCone (eds), Sages, Saints and Storytellers: Celtic Studies in honour of James Carney., Maynooth Monographs, Maynooth pp. 412-426.


Sims-Williams, P. 1989. Fionn and Deirdre in Late Medieval Wales. Éigse 23 pp. 1-15.



Sims-Williams, P. 1988. St Wilfrid and two charters dated AD 676 and 680. Journal of Ecclesiastical History 39 (2) pp. 163-183. 10.1017/S0022046900020649

Book/Film/Article review

Sims-Williams, P. 1988. A Lost Epic Recovered. Times Literary Supplement pp. 434.

Special issue

Sims-Williams, P. 1988. William Morgan (1545-1604). The Eagle



Sims-Williams, P. 1986. The Visionary Celt: The Construction of an Ethnic Preconception. Cambridge Medieval Celtic Studies 11 pp. 71-96.



Sims-Williams, P. 1985. Thoughts on Ephrem the Syrian in Anglo-Saxon England. In M. Lapidge, H. Gneuss (eds), Learning and Literature in Anglo-Saxon England: Studies presented to Peter Clemoes on the occasion of his Sixty-Fifth Birthday., , Cambridge pp. 205-226. Other

Sims-Williams, P. 1985. Cyfieithiadau o Waith y Gogynfeirdd: Llyfryddiaeth Fer. In J. Williams (ed), Ysgrifau Beirniadol., Gwasg Gee pp. 39-47.



Sims-Williams, P. 1984. Gildas and Vernacular Poetry. Gildas: New Approaches., , Woodbridge pp. 169-192.


Sims-Williams, P. 1984. The Double System of Verbal Inflexion in Old Irish. Transactions of the Philological Society 82 (1) pp. 138-201. 10.1111/j.1467-968X.1984.tb01211.x Other



Sims-Williams, P. 1983. Dafydd ap Gwilym and Celtic Literature. In B. Ford (ed), Medieval Literature: The European Inheritance., , Harmondsworth pp. 301-317.


Sims-Williams, P. 1983. Gildas and the Anglo-Saxons. Cambridge Medieval Celtic Studies 6 pp. 1-30.

Sims-Williams, P. 1983. The settlement of England in Bede and the Chronicle. Anglo-Saxon England 12 pp. 1-41. 10.1017/S0263675100003331 Other

Sims-Williams, P. 1983. William of Malmesbury and La silloge epigrafica di Cambridge. Archivum historiae pontificiae 21 pp. 9-33. Other



Sims-Williams, P. 1982. The Evidence for Vernacular Irish Literary Influence on Early Mediaeval Welsh Literature. In D. Whitelock, R. McKitterick, D. Dumville (eds), Ireland in Early Mediaeval Europe: Studies in memory of Kathleen Hughes., Cambridge University Press pp. 235-257.


Sims-Williams, P. 1982. The Development of the Indo-European Voiced Labiovelars in Celtic. Bulletin of the Board of Celtic Studies 29 pp. 201-229, 690.

Sims-Williams, P. 1982. The Significance of the Irish Personal Names in Culhwch ac Olwen. Bulletin of the Board of Celtic Studies 29 pp. 600-620.



Sims-Williams, P. 1980. anfab, “illegitimate child”: A Ghost-Word. Bulletin of the Board of Celtic Studies 28 pp. 90-93.

Sims-Williams, P. 1980. gan: Poems of Taliesin III. 5. Bulletin of the Board of Celtic Studies 28 pp. 402-403.

Sims-Williams, P. 1980. A Guide to Welsh Literature. British book news 2 pp. 695-696.

Book/Film/Article review

Sims-Williams, P. 1980. A Welsh Grammar. British book news pp. 669-670.



Sims-Williams, P. 1979. An Unpublished Seventh- or Eighth-Century Anglo-Latin Letter in Boulogne-sur-Mer MS 74 (82). Medium Aevum 48 pp. 1-22.



Sims-Williams, P. 1978. Riddling Treatment of the “Watchman Device” in Branwen and Togail Bruidne Da Derga. Studia Celtica pp. 83-117.

Sims-Williams, P. 1978. "Is it Fog or Smoke or Warriors Fighting?": Irish and Welsh Parallels to the Finnsburg Fragment. Bulletin of the Board of Celtic Studies 27 pp. 505-514.

Sims-Williams, P. 1978. Thought, Word and Deed: An Irish Triad. Ériu Eriu 29 pp. 78-111. Other

Sims-Williams, P. 1978. Report on a Course held in the Computer Unit of the University College of Wales, Aberystwyth, 10th-14th April 1978, on the Use of Computers in Textual Analysis and Bibliography. Bulletin of the Association for Literary and Linguistic Computing 6 pp. 159-160.



Sims-Williams, P. 1976. Cuthswith, Seventh-Century Abbess of Inkberrow, near Worcester, and the Würzburg Manuscript of Jerome on Ecclesiastes. Anglo-Saxon England 5 pp. 1-21. 10.1017/S0263675100000752



Sims-Williams, P. 1975. Continental Influence at Bath Monastery in the Seventh Century. Anglo-Saxon England 4 pp. 1-10. 10.1017/S0263675100002672