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Definitions

Fortified residence

The strict scholarly castle: a fortified private residence of a lord. Both halves are load-bearing — a fortress nobody lived in is not one, and an undefended great house is not one either.

Criterion

The structure was built or adapted to be BOTH a defensible work and the residence of a private lord (secular or ecclesiastical), and was so used. Defensibility means active defence — wall walks, parapets, flanking fire, a gatehouse meant to be held — not merely a wall or a moat. Communal defences held by a town, and works built and garrisoned by a state, both fail the "private residence" half however formidable they are. Tenure decides, not silhouette.

Includes

  • Masonry castles and timber castles (mottes, ringworks, motte-and-bailey)
  • Tower houses and pele towers where residence and defence coincide
  • Fortified episcopal and royal residences (a royal lord is still a lord)
  • Japanese shiro and other non-European lordly fortifications — the criterion is functional, not geographic

Excludes

  • Urban defences and town walls (communal, not private)
  • State artillery forts and coastal batteries (state, not seigneurial)
  • Moated houses and walled sites with no active defensive capability
  • Palatial residences whose defensive features are decorative

Closure: enumerable

Closable per jurisdiction, because national archaeological registers classify by monument type and a "castle" class can be filtered and counted. Ireland is the proof: the SMR returns 4,552 Castle-class records, and 129 if you accept only Anglo-Norman masonry castles. The band closes one jurisdiction at a time, never globally.

Who defines it this way

  • R. Allen Brown — English Castles (Batsford, 1954) (source)
    The private fortress and residence of a lord.
  • D. J. Cathcart King — Castellarium Anglicanum (Kraus, 1983) (source)
    A fortified residence of a (feudal) lord.
  • John Goodall — The English Castle (2011) (source)
    A castle is the residence of a lord made imposing through the architectural trappings of fortification.
  • Philip Davis — Defining 'The Castle' (2009, revised 2016) (source)
    In effect it is impossible to define 'the castle' since there is no one such thing. Much of the controversy in castle studies between militarists and revisionists lies in a befuddled use of examples of 'castles' of very different function.
  • FISH / Historic England Monument Type Thesaurus — Term 'Castle', scope note (source)
    A fortress and dwelling, usually medieval in origin.

Bounded by

In this dataset

assessedregister-derived
Satisfies this definition24650
Contested70
Does not satisfy90
Unassessed0

Derived from the records, not typed. See counts and coverage.

Note

Three cautions about this band, all of which its own authorities supply. First, the scholars are cited THROUGH Davis's essay, which quotes each of them and was read directly; the monographs themselves were not opened. That is recorded rather than hidden, because a citation chain is only as strong as its weakest undisclosed link. Second, Davis — who built a six-thousand-site gazetteer, making him about the most qualified person alive to define the term — concluded that it cannot be done. This project agrees, and the bands are the consequence: not a better definition, but an admission that one definition was always the wrong shape. Third, medieval usage was itself unstable, so the strict band is not even faithful to its own period. Davis notes that a castellum could be a manorial centre with no fortification at all, or a village — the Vulgate calls Bethlehem a castellum. Note too that the leading learned society, the Castle Studies Group, publishes no definition of the term at all. That absence is itself evidence.

Assessed records

Structures somebody applied this criterion to, with the reasoning.

  • Cnwclas Castle — contested: CONTESTED between two registers. Cadw schedules this as SiteType: Castle, which maps to this band. Wikidata classes the same monument (joined on Cadw Monument ID) as a contour fort, which maps to enclosure_fortification instead. The registers disagree about what kind of thing it is, not about the evidence: Cnwclas (Knucklas) Castle — a medieval castle on a hilltop with earlier enclosure works, so both readings describe something real on the site. Recorded as contested rather than resolved to whichever register we imported first.
  • Castell Dryslwyn — contested: CONTESTED between two registers. Cadw schedules this as SiteType: Castle, which maps to this band. Wikidata classes the same monument (joined on Cadw Monument ID) as a contour fort, which maps to enclosure_fortification instead. The registers disagree about what kind of thing it is, not about the evidence: Dryslwyn Castle — a native Welsh castle of the Deheubarth princes, built on a hill that carries earlier defences, so both readings describe something real on the site. Recorded as contested rather than resolved to whichever register we imported first.
  • Castle at Calverstown Demesne — contested: CONTESTED between two registers. The Archaeological Survey of Ireland classes this Castle - tower house, which maps to this band. Wikidata (Q140623341), joined on the SMR identifier, classes it manor house, which maps to palatial_seat. The disagreement is about what kind of thing it is: a tower house that was later absorbed into or rebuilt as a country residence. Recorded as contested rather than resolved to whichever register was imported first.
  • Fanningstown Castle — contested: CONTESTED between two registers. The Archaeological Survey of Ireland classes this Castle - tower house, which maps to this band. Wikidata (Q55050704), joined on the SMR identifier, classes it stately home, which maps to palatial_seat. The disagreement is about what kind of thing it is: a tower house standing within, or converted into, a later country seat. Recorded as contested rather than resolved to whichever register was imported first.
  • Trim Castle — yes: The largest Anglo-Norman castle in Ireland: a genuine fortified private residence of a lord, with curtain wall, towers, gatehouses meant to be held, and a great keep serving as the lordly residence. Meets both halves of the criterion without strain.
  • Castle at Mullaghreelan — contested: CONTESTED between two registers. The Archaeological Survey of Ireland classes this Castle - ringwork, which maps to this band. Wikidata (Q24196386), joined on the SMR identifier, classes it ringfort, which maps to enclosure_fortification. The disagreement is about what kind of thing it is: a ringwork on a site that may equally be read as an earlier ringfort — the two are hard to separate on the ground and Irish archaeology disputes exactly this boundary. Recorded as contested rather than resolved to whichever register was imported first.
  • Chittorgarh Fort — contested: A hill fort enclosing palaces, temples and an urban settlement, seat of the Sisodia rulers of Mewar. It is a lordly fortified seat, but the enclosed settlement makes it closer to a fortified town than a private residence, and the European private/communal distinction does not map cleanly onto Rajput polity.
  • Himeji Castle — yes: A fortified residence of a lord, satisfying the criterion on its own functional terms: defensible works - baileys, gatehouses meant to be held, loopholes, a spiral approach designed for defence - combined with the residence of a daimyo. The criterion is functional rather than geographic and Himeji meets it without needing a special case.
  • Crac des Chevaliers — contested: A concentric fortress of the highest order that was also the residence of the Hospitaller garrison. Whether a military order counts as a private lord is exactly the boundary the criterion cannot settle: the Order was neither a state nor an ordinary seigneur, and scholars differ. Recorded as contested rather than forced.

Register-derived records (4650)

Transcribed in bulk from a register's own typology. Nobody has applied this band's criterion to these structures, so they carry confidence: low and are counted separately above. Upgrading them to assessed verdicts is real outstanding work, not a formality.

Definition file · dataset licensed CC BY 4.0