1911 Encyclopædia Britannica/Penrith… (1911)
“ Clock and watch-making seems to have been an important trade here in the 18th century. The town suffered much from the incursions of the Scots, and Ralph, earl of Westmorland, who died 1426, built the castle, but a tower called the Bishop's Tower had been previously erected on the same site. In 1597–1598 a terrible visitation of plague attacked the town, in which, according to an old inscription on the church, 2260 persons perished in Penrith, by which perhaps is meant the rural deanery. During the Civil War the castle was dismantled by the Royalist commandant. ”
