The Black Cock Inn
The pub was situated along the centre of Yr Allt with the rear of the building facing the churchyard and was said to be a short distance from the Bluebell Inn.
Without doubt the naming of the pub was due to its owner, Edmund Mathew (d. 1788), a descendant of Marcher Lord Sir David ap Mathew, Lord of Llandaff and one of the great ten barons of Glamorgan.
His crest was a black cock or heathcock above the coat of arms and is shown on the Earl Llandaff memorial in a form akin to a farmyard cock or rooster.
Edmund Mathew was one of the gentry family of Aberaman House and was made a Freeman of Llantrisant by gift in the rolls of 1724.
By 1780 the pub was as referred to as the “old Black Cock” and probably ceased trading. In 1784 it was used as a workhouse due to the overcrowding of the parish workhouse buildings on Swan Street.
The buildings were later occupied by Watkin Evans, the surgeon and then by Alderman Evan Jones, the sergeant of militia. David Jones “and others” were also named as tenants from 1804, presuming they were changed into two or three cottages in 1804.