In 1868, the parish of Pentrevoelas contained the following places:
"PENTREVOELAS, (or Capel-voelas), a parish in the hundred of Isaled, county Denbigh, 8 miles S.E. of Llanrwst. It is situated on a branch of the river Conway, near the falls. A portion of the inhabitants are employed in the manufacture of flannel. In the vicinity is Castell Coch, which was reduced by Llewelyn. The living is a perpetual curacy* in the diocese of St. Asaph, value £242. The church is an ancient structure. Near the ruins of Voelas Hall is a pillar to Llewelyn ab Sitsylt, killed in 1021. Annual fairs are held on the 18th March, 12th May, 14th August, and 20th November.