ROG, a chapelry, in the parish and union of CORWEN, hundred of EDEYRNION, county of MERIONETH, NORTH WALES; I/ mile (W.
by N.) from Corwen, with which the population is returned. This place is situated on the turnpike-road from Corwen to
Ruthin, and between the beautiful vales of Edeyrnion and Glyndyvrdwy. It anciently formed a lordship, and is memorable for
the treachery practised on Grufydd ab Cynan, King of North Wales, who, after his victory at Carno, in the year 1077, was
inveigled to Rig by the artifices of Meirion Goch, by whom he was betrayed into the power of Hugh Lupus, Earl of Chester,
and Hugh Belesme, Earl of Shrewsbury. From this place Grufydd was conveyed to the castle of Chester, in which he remained
a prisoner for twelve years, but was at length released from confinement by the enterprising bravery of a young man of
this neighbourhood, named Cynric Hir, who, going to Chester under pretence of purchasing goods, contrived, while the
keepers were feasting, to carry away his prince, loaded with chains, upon his back, and convey him to a place of safety.
The lordship afterwards came into the possession of Owain Brogyntyn, natural son of Madoc ab Meredydd, Prince of Powys,
whose great merit procured for him an equal share in the inheritance of that prince with his legitimate brothers: it
subsequently passed by marriage with the heiress of Ievan Hywel, one of his descendants, to Pyers Salisbury, of Bichymbyd.
After the attainder of Owain Glyndwr, in the reign of Henry IV., the lordship of Glyndyvrdwy, or Glyndwrdwy, was purchased
from that monarch by Robert, a descendant of this family, which existed in the male line till the last century. The house
and demesnes are now the property of G. H. Vaughan, Esq., who, in 1807, succeeded his brother, Lieutenant-Colonel E. W.
Vaughan, who had assumed the name of Salisbury, a distinguished officer in the Guards, who died in Sicily, and to whose
memory a handsome monument was erected at Syracuse, by his fellow officers. The ancient mansion was taken down and rebuilt
by that gentleman, only a short time before his decease. The present house, which is a handsome structure, is pleasantly
situated; and in the grounds is an artificial mound, which was probably once the site of a small fortress. The chapel,
founded by Colonel William Salisbury, .governor of Denbigh Castle 366 during the parliamentary war, is a neat edifice,
appropriately fitted up for the performance of divine service.