Other current and historical names
Location and coordinates are for the approximate centre of Trefecca within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Trefecca, hamlet, Talgarth par., Brecknockshire, 8 miles SW. of Hay; Trefecca House was the residence of Howel Harris (1713-1773), one of the founders of Calvinistic Methodism, and also of the Countess of Huntingdon, who made Tredustan Court, in the vicinity, a college for teachers of the connection.