Llantrisant
![](/Images/godic/202501/24/Rhondda_Cynon_Taf_UK_location_map.svg1244.png")
![The remains of Llantrisant Castle](/Images/godic/202501/24/Llantrisant_Castle_ruins1244.jpg")
![The 15th century tower of The Church of the Three Saints, Llantrisant](/Images/godic/202501/24/Y_tre_sant1244.jpg")
![](/Images/godic/202501/24/Wales_Rhondda_Cynon_Taf_locator_map.svg1244.png")
Llantrisant ("Parish of the Three Saints") is a town in the county borough of Rhondda Cynon Taf in Wales, within the historic county boundaries of Glamorgan, Wales, lying on the River Ely and the Afon Clun. The three saints of the city's name are SS. Illtyd, Gwynno, and Dyfodwg. Llantrisant is a hilltop settlement, at an altitude of 174 m (565 ft) above sea level. The town is home to the Royal Mint.