The Llanstephan Collection is the personal collection of Sir John Williams, the main benefactor of The National Library of Wales. Sir John lived for many years at Llanstephan mansion, Carmarthenshire.
The collection consists of:
The collection was presented to The National Library in 1909. Amongst the manuscripts are
Other manuscripts from Sir John Williams’ collection (including many that were bought by him at auctions of Sir Thomas Phillips’ manuscripts), are in the NLW Manuscripts series (numbers 1-500).
For descriptions of individual manuscripts in the Llanstephan Collection, see
J Gwenogvryn Evans’ catalogue, Report on Manuscripts in the Welsh Language (London, 1898-1910), vol. II, pp. 419-782.