Ystradyfodwg

Ystradyfodwg or Ystrad Dyfodwg (Vale of Tyfodwg) was an ancient upland parish in Glamorgan, Wales.

It stretched from the confluence of the Rhondda rivers at Porth, over the mountain as far as the Vale of Neath.

[1] The district was enlarged in 1879 to cover parts of the neighbouring parishes of Llanwonno and Llantrisant.

[2][3] The Ystradyfodwg Local Board built itself a headquarters on Llewellyn Street in Pentre in 1884.

The majority of the incomers came from West Wales, particularly Carmarthenshire and Ceredigion and spoke Welsh.

In 1877, the Hamlet of Rhigos was made a separate civil parish, and the remainder of Ystradyfodwg, together with the adjoining Rhondda valley portions of the parishes of Llanwonno and Llantrisant, became the urban sanitary district of Ystradyfodwg.