ALLERTHORPE MANOR

Identity: confirmed — The registry location and associated place, Pickhill with Roxby, identify the North Riding manor of Allerthorpe in the historical township of Swainby-with-Allerthorpe, rather than the separate Allerthorpe manor near Pocklington in the East Riding. The surviving Allerthorpe Hall is explicitly identified as a manor house and lies in Swainby with Allerthorpe.
Representative point: 54.275500, -1.494465
Basis: documented_manor_house — Allerthorpe Hall, Gatenby Road, is the surviving early seventeenth-century manor house associated with the manor. Historic England gives National Grid Reference SE 33017 86768; the corresponding WGS84 position is approximately 54.275500, -1.494465.
Point confidence: high
Boundary status: representative_point_only
Boundary period:
Boundary confidence: none
Boundary basis: The research located the manor house and established the historical association with Swainby-with-Allerthorpe and Pickhill parish, but did not locate a reliable manor-specific map, survey, rental plan, enclosure record, or other source defining the perimeter of the historical Allerthorpe manorial lands. The 863-acre area cited for the historical township of Swainby-with-Allerthorpe is an administrative/township extent and is not substituted for the manor boundary.
Sources:
- Allerthorpe Hall, Swainby with Allerthorpe - Historic England National Heritage List entry 1150769: https://historicengland.org.uk/listing/the-list/list-entry/1150769 — Identifies Allerthorpe Hall as a manor house, dates it to 1608, places it in the parish of Swainby with Allerthorpe, and supplies National Grid Reference SE 33017 86768.
- Pickhill With Roxby Parish through time - A Vision of Britain through Time: https://www.visionofbritain.org.uk/unit/10459448 — Shows Allerthorpe as a separate manor within the historical Pickhill-with-Roxby parish framework and places the relevant manor in the North Riding context.
- Swainby with Allerthorpe - historical and geographical summary: https://en.wikipedia.org/wiki/Swainby_with_Allerthorpe — Corroborates that Allerthorpe is the northern part of the historical Swainby-with-Allerthorpe township, that the surviving building is Allerthorpe Hall, and that the township was historically in Pickhill parish.
- Allerthorpe Hall, Yorkshire - Gazetteer of British Place Names: https://gazetteer.org.uk/place/Allerthorpe_Hall%2C_Yorkshire_299555 — Provides a published decimal position for Allerthorpe Hall and confirms its identification as an early seventeenth-century manor house in the North Riding.
- The National Archives Discovery record F245883: https://discovery.nationalarchives.gov.uk/details/c/F245883 — The supplied registry record for the exact manor; its location metadata links the record to Pickhill with Roxby, Yorkshire.
Warnings / uncertainty:
- There is a separate Allerthorpe Manor record near Pocklington in the East Riding of Yorkshire; that is not the manor identified here.
- No defensible historical manorial perimeter was found, so no polygon is supplied.
- The representative point marks Allerthorpe Hall, the documented manor house, not a claimed boundary centroid.