The Savigniac Order / Order of Savigny had its origins in 1105 when Vitalis of Mortain established a hermitage in the forest of Savigny. He drew supporters and duly formed a community of monks who followed the Rule of St Benedict and wore grey habits. As the community grew, daughter-houses were founded and a Savigniac Congregation evolved. By the mid-twelfth century, however, the Savigniacs faced financial problems and Abbot Serlo, the head of Savigny, asked the Cistercians to incorporate his congregation. The Cistercian General Chapter of 1147 conceded and all Savigniac houses were subsequently visited and reformed according to Cistercian ideals. The Welsh monasteries of Basingwerk (Flintshire) and Neath (Glamorgan) were founded as Savigniac houses but became Cistercian after 1147.
The Heads of Religious Houses in England and Wales, I, 940-1216, ed. D. Knowles, C. Brooke and V. London (London, 1972; 2001)
Birch, Walter de Gray, 'A History of Neath Abbey derived from original documents ... with some account of the castle and town of Neath [and] notices of the other monasteries of Glamorganshire' (Neath, 1902)
Burton, Janet, The Monastic and Religious Orders in Britain 1000-1300 (Cambridge, 1994)
Butler, Lawrence A. S., 'The foundation charter of Neath Abbey', Archaeologia Cambrensis, 148 (2001 for 1999), pp. 214-216
Department of the Environment, GB, Neath Abbey, Glamorgan (HMSO: London, 1973)
Gaimster, Märit, and Bradley, John, 'Medieval Britain and Ireland, 2001: Neath Abbey (SS 738 973)', Medieval Archaeology, 46 (2002), p. 262
H. L. J. and J. W., 'Basingwerk Abbey', Archaeologia Cambrensis, 1:2 (1846), pp. 97-116
Hurst, John G., 'Medieval Britain in 1956: Glamorgan: Neath Abbey (SS/737974)', Medieval Archaeology, 1 (1957), p. 154
Jones, Arthur, 'Basingwerk Abbey', in Historical Essays in Honour of James Tait, ed. J. G. Edwards, V. H. Galbraith and E. F. Jacob (Manchester, 1933), pp. 169-178
Lawrence, L., Neath Abbey, West Glamorgan = Abaty Need, Gorllewin Morgannwg (HMSO: London, 1976)
Lewis, David, 'Notes on the Charters of Neath Abbey', Archaeologia Cambrensis, 5th series, 4:14 (1887), pp. 86-115
Milne, H., 'Neath Abbey', Archaeology in Wales, 41 (2001), p. 151
Moore, Patricia, 'Neath Abbey Endowment Charter, ca. 1129', Morgannwg, 35 (1991), pp. 96-97
Phillips, D. Rhys, 'The Abbey of Neath', in History of the Vale of Neath (Swansea, 1925), pp. 62-69, 656-658
Phillips, T. C., Historical Glimpses of Neath Abbey Ruins (E. Morgan: Neath, 1906)
Richard, Arthur J., 'The Religious Houses of Glamorgan', in Stewart William's Glamorgan Historian 2 ed. Stewart Williams (D. Brown: Cowbridge, 1965), pp. 61-75
Robinson, David M., Neath Abbey (Cadw: Welsh Historic Monuments Commission: Cardiff, 1989; rev. 1993, 1997)
Sutton, T. S., 'Neath Abbey', Archaeologia Cambrensis, 5th series, 4:14 (1887), pp. 81-5
Taylor, A. J., Basingwerk Abbey, Publication of Ministry of Public Buildings and Works (1946)
Thomas, C. S. and Taylor, F. E., Neath Abbey 1130-1938: A Short Guide to the ruins taken from the notes of the late Glen A. Taylor (Neath, 1938)
Wilcox, M., 'The foundation charter of Neath Abbey', Annual Report of the Glamorgan County Archivist (1990), pp. 17-18
Williams, G., 'Neath Abbey', in Neath and District: A Symposium, ed. E. Jenkins (2nd edn; Neath, 1974), pp. 73-91