NB Books which refer to Abergwesyn might equally refer to the parish of Llanfihangel Abergwesyn
Bidgood, Ruth. Abergwesyn : Bwlch y Ddau Faen. Newtown, Powys : Gwasg Gregynog, 1997. 16p
Bidgood, Ruth. Churches and gentry in the Abergwesyn area. Brycheiniog 21 (1984/85), p. 34-51
Bidgood, Ruth. Parishes of the Buzzard. Alun Books, Port Talbot, 2001. Paperback 269 pages; ISBN: 0907117805"A very detailed and readable history of all aspects of life in Llanddewi Abergwesyn and Llanfihangel Abergwesyn."
Gwyndaf, Robin. Abergwesyn, y porthmyn a Ruth Watcyn. Medel 1 (1985), p. 34-40
Detailed information on deposited registers and transcripts for this parish is given under Breconshire Parish Registers on the Powys Archives website
Llanddewi Abergwesyn parish was united with Llanfihangel Abergwesyn parish in 1885, no separate marriage register thereafter.
As a guide only, the principal extant parochial church records for this parish span the dates shown below (as detailed in Parish Registers of Wales, NLW 2000) but exact current holdings should be confirmed with the individual Archives;
Baptisms 1813-1984; Marriages 1813-1873; Burials 1813-1986; Banns 1826-1862, 1957-1959 Parish Registers, or copies, for all or part of these dates are held at the NLW and/or Powys Archives. Also, at Cardiff Central Library and the NLW are Baptisms 1738-1812; Marriages 1738-56, 1765-1812; Burials 1738-1812 Bishops Transcripts for various periods are held at the NLW.
Parish of Llanfihangel Abergwessin in the County of Brecon. 1841. Evan Jones Griffiths, Llandeilo, surveyor. Thomas Price, Ystrad, Builth, valuer. Evan Evans, Fron Wen, Llanafan Fawr, Breconshire, valuer. Second class map. Voluntary agreement. Commutation dated 13.01.1841. Shows waterbodies, houses, woods, plantations, old mound, boundary stones and marks, and holdings; enclosed lands only. 6,836 acres commuted. Apportionment by holding. Land use details and field-names given in apportionment schedule. Tithe rent charge £180 (£60 Vicar; £120 Chanter and Chapter of St David's Cathedral).
You can see maps centred on OS grid reference SN854526 (Lat/Lon: 52.159708, -3.676767), Llanddewi Abergwesyn which are provided by: