The ecclesiastical parish of Trefnant was created, by an order in Council, on 21 January 1855, out of part of the ancient parish of Henllan. It consists of the townships of Llewenni Isaf, Llewenni Uchaf, Banister Isaf and Banister Uchaf.
In 1975, a small portion of the south of the parish went to the parish of Denbigh.
Ordnance Survey reference SJ 050705.
The foundation stone of the church was laid on 25 July 1853; and the church, dedicated in the name of the Holy Trinity, was consecrated on 16 August 1855. Various additions were made in 1905.
The Clwyd FHS website has a photograph of the church.
Nonconformist Churches"Welsh Church Commission - County of Denbigh - The Statistics of the Nonconformist Churches for 1905"lists the following nonconformist place of worship in the Civilparish of Trefnant :
The following Parish Registers have been deposited at the Denbighshire Record Office, Ruthin.
They may be viewed on microfilm at the Denbighshire and Flintshire Record Offices, and at the National Library of Wales, Aberystwyth.
These microfilms are not available elsewhere.
1855 - 1920
1855 - 1975
No Bishop's Transcripts have been deposited for Holy Trinity, Trefnant.
There are no official I.G.I. entries for Holy Trinity, Trefnant.
On Clwyd FHS's site there is a diagram showing parish names/positions with links to pages for the parish church
Kain, R.J.P., Oliver, R.R., Historic Parishes of England and Wales: an Electronic Map of Boundaries before 1850 with a Gazetteer and Metadata [computer file]. Colchester, Essex: History Data Service, UK Data Archive [distributor], 17 May 2001. SN: 4348. Here is a gazetteer/finding aid plus a set of overview maps to accurately identify the position of parishes within the county
You can see maps centred on OS grid reference SJ052706 (Lat/Lon: 53.223947, -3.421450), Trefnant which are provided by: