"A parish in the Union of Corwen, hundred of Isaled, county of Denbigh, 6 miles (W) from Corwen, containing 1011 inhabitants. ..... This parish, which is of great extent, is situated in a dreary moorland district, near the extremity of the county, bordering on Merionethshire. ..... The female inhabitants are principally employed in the spinning of woollen yarn; the males are occupied in attendance upon their herds and flocks, great numbers of which are purchased by the English drovers, and fattened for the London market." [A Topographical Dictionary of Wales, 1833 & 1849, Samuel Lewis]
The parish comprises the townships of Llan (or Tre'rllan), Moelfre, Penyfed, Rhosymaenbrych, Disgarth, Llys Dinmael, Cefn Cymer and Ystradelog (or Nanthalog).