ALLERDALE BELOW DERWENT BARONY

Identity: confirmed — The supplied TNA/MDR identifier F243225 and archive references explicitly identify the record creator as ALLERDALE BELOW DERWENT BARONY. The Lancaster University Cumbrian Manorial Records directory independently describes Allerdale below Derwent as the barony containing or exercising superior lordship over Aspatria and other named manors, confirming that the registry record is the barony rather than merely the parish or township of Aspatria.
Representative point: 54.6694, -3.3833
Basis: documented_manor_house — The barony's original caput was at Papcastle. Historic England records the surviving Manor House and Manor Cottage at Papcastle at National Grid Reference NY 10885 31347; conversion of that reference gives approximately 54.6694, -3.3833 WGS84. Papcastle is also identified by the Cumbria County History Trust as the site of the caput of Allerdale barony.
Point confidence: high
Boundary status: representative_point_only
Boundary period: Medieval barony, with later medieval alteration after the creation of the barony of Wigton
Boundary confidence: medium
Boundary basis: Reliable historical descriptions establish the broad territorial framework but do not provide a sufficiently precise, source-mapped perimeter for safe polygon injection. The original barony extended approximately from the River Derwent southward to the River Wampool northward; its eastern boundary was described by the Shawk brook and River Caldew. The area between the Waver and Wampool was later separated as the barony of Wigton, reducing the northern extent. The barony was a superior jurisdiction containing numerous component manors, so the modern Allerdale Below Derwent ward, parish boundaries, or the Aspatria township boundary cannot be substituted for the historical baronial boundary.
Sources:
- The National Archives: F243225, Allerdale Below Derwent Barony: https://discovery.nationalarchives.gov.uk/details/c/F243225 — Registry record and authority context for the exact barony record.
- Cumbrian Manorial Records: Cumberland directory of baronies and superior manors: https://www.lancaster.ac.uk/fass/projects/manorialrecords/cumbria/cumberlandlist.htm — Identifies Allerdale below Derwent as a barony, lists Aspatria among the manors under its immediate lordship, and states that the original caput was at Papcastle.
- Aspatria & Brayton, Cumbria County History Trust: https://www.cumbriacountyhistory.org.uk/township/aspatria-brayton — Confirms that the manor of Aspatria descended with the lords of Allerdale barony and distinguishes the manor from the later township and parish geography.
- Papcastle, Cumbria County History Trust: https://www.cumbriacountyhistory.org.uk/township/papcastle — States that the site of the Roman fort at Papcastle was the caput of Allerdale barony before Cockermouth.
- Manor House and Manor Cottage, Papcastle, Historic England, list entry 1157867: https://historicengland.org.uk/listing/the-list/list-entry/1157867 — Provides the documented manor-house location at National Grid Reference NY 10885 31347, used for the representative point.
- A History of Cumberland, William Jackson Ferguson: https://upload.wikimedia.org/wikipedia/commons/9/96/A_history_of_Cumberland_%28IA_historyofcumberl00fergiala%29.pdf — Describes the barony's original extent from the Derwent to the Wampool, its eastern boundary by the Shawk brook and Caldew, and the later separation of the Waver-Wampool area as the barony of Wigton.
Warnings / uncertainty:
- The returned point represents the documented baronial caput/manor-house site at Papcastle, not the centre of Aspatria township.
- No historically documented or reliably reconstructable polygon perimeter was found. Do not substitute the modern Allerdale Below Derwent ward, Aspatria parish, or any modern civil boundary.
- The barony's territorial composition changed over time and included component manors held by different immediate lords; a single exact polygon would require a period-specific estate map, survey, or detailed boundary reconstruction.