A Vision of Britain through Time provides the following description of Blenkinsopp from John Marius Wilson's Imperial Gazetteer of England and Wales of 1870-72: BLENKINSOP, a township in Haltwhistle parish, Northumberland; on the Newcastle and Carlisle railway, and on the Roman wall, 3 miles W of Haltwhistle. Acres: 4,919. Population: 444. Houses: 90. Haltwhistle Castle is the ruin of a strong square tower, the ancient seat of the Blenkinsops, noted for their Border feuds; and Blenkinsop Hall is the seat of J. Coulson, Esq., the descendant of the Blenkinsops. A Roman altar was found in 1720, and an inscription to Ceres in 1816. Coal is worked."
Blenkinsopp was a township in the ancient parish of Haltwhistle and became a separate civil parish in 1866. In 1955 the civil parish was abolished and the area was absorbed into the newly-formed parish of Greenhead.
Blenkinsopp Castle is a fire-damaged, partly demolished 19th-century country mansion incorporating the ruinous remains of a 14th-century tower house located above the Tipalt Burn approximately one mile from Greenhead, Northumberland, England. It is a Grade I listed building and a Scheduled Ancient Monument.
The ancient manor of Blenkinsopp was held by the eponymous Blenkinsopp family from the 13th century and they created a substantial tower house. A licence to crenellate the house was granted on May 6, 1340.
In 1727 the heiress Jane Blenkinsopp married William Coulson of Jesmond. By 1832 the property was in disuse, and a mine agent's house was built adjoining the ruinous structure, probably by the architect John Dobson. In about 1877 William Blenkinsopp Coulson carried out a major restoration project which created a large mansion house on the site. Shortly after these works, the Coulsons sold all their Blenkinsopp estates to Edward Joicey.