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In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Trecastle like this:
TRECASTLE, a village in Llywell parish, Breconshire; on the Brecon and Llandovery railway, under T.-Beacon mountain, 11 miles W of Brecon. It has a post-office under Brecon, an inn, and seven annual fairs. A castle was founded adjacent to it by Bernard Newmarch; and is now represented by a mound and extensive earthworks. T.-B. mountain is 2,594 feet high.
Trecastle is now part of POWYS District. Click here for graphs and data of how POWYS has changed over two centuries. For statistics about Trecastle itself, go to Statistics.
How to reference this page:
GB Historical GIS / University of Portsmouth, History of Trecastle, in Powys and Brecknockshire | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/23279
Date accessed: 08th April 2026
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Trecastle".
