Certain |
Possible |
Questionable Doubtful |
Rejected |
|
Confidence is a statement of the site as a medieval fortification or palace |
| Name | Alternative Name(s) | Type | Remains |
| Alderton Motte | Timber Castle | Earthworks | |
| Alderton Ringwork | Castle Mound; The Mount; Alderingtune | Timber Castle | Earthworks |
| Althorp | Olthorp | Fortified Manor House | Nothing visible | Astwell Castle | Astwell House | Fortified Manor House | Masonry ruins/remnants |
| Barby Castle | Timber Castle | Earthworks | |
| Barnwell Castle | Barnwell St Andrew | Masonry Castle | Major |
| Barnwell Motte | Barnwell St Andrew | Timber Castle | Cropmarks/slight earthworks | Barton Seagrave Castle | Barton Hanred | Fortified Manor House | Earthworks |
| Benefield Castle | Beningfield | Timber Castle | Earthworks |
| Berry Close Hill, Culworth | Timber Castle | Earthworks | |
| Billing; The Priory | Fortified Manor House | Earthworks | Boughton House | Fortified Manor House | Masonry ruins/remnants |
| Brackley Castle | Timber Castle | Cropmarks/slight earthworks | |
| Brackley Town Walls | Urban Defence | Nothing visible | Bradden Manor | Fortified Manor House | Nothing visible | Braybrooke Castle | Braybrok; Braibrok | Masonry Castle | Earthworks | Brigstock Manor | Palace | Earthworks | Bury Mount, Towcester | Towcester Mote, Certhill | Timber Castle | Earthworks |
| Canons Ashby Castle Hill | Timber Castle | Cropmarks/slight earthworks | |
| Castle Ashby; The Castle | Asheby David | Timber Castle Masonry Castle Palace |
Nothing visible |
| Castle Hymel, Fineshade | Castle Hely; Humbel | Timber Castle | Cropmarks/slight earthworks |
| Chipping Wardon | Arbury Camp; Arbury Banks | Timber Castle | Earthworks | Collyweston House | Palace | Earthworks | Cransley Motte | Great Cransley Mound | Timber Castle | Earthworks |
| Draughton | Timber Castle | Cropmarks/slight earthworks | |
| Drayton House | Fortified Manor House | Masonry ruins/remnants | Earls Barton Berry Mount | Timber Castle | Earthworks |
| East Farndon Moot Hill | Timber Castle | Cropmarks/slight earthworks | Easton Neston House | Estneston | Fortified Manor House | Nothing visible |
| Farthingstone Castle Dykes | Timber Castle Masonry Castle |
Earthworks | |
| Fotheringhay Castle | Fotheringay; Fortheringhay | Timber Castle Masonry Castle Palace |
Earthworks | Geddington Lodge | Geddington Palace; Geddington Castle; Geitinton; Ceddington | Palace | Cropmarks/slight earthworks | Grafton Regis Manor | Palace | Masonry ruins/remnants | Harringworth Manor | Manor Cottages; Haringworth; Haryngworth | Fortified Manor House | Masonry ruins/remnants |
| Higham Ferrers Castle | Timber Castle Masonry Castle |
Cropmarks/slight earthworks | Higham Ferrers Town Defences | Urban Defence | Nothing visible | John of Gaunts Castle, Daventry | Daventry Wood | Masonry Castle | Cropmarks/slight earthworks | Kilsby Manor | Palace | Nothing visible | Kings Cliffe Kings House | Palace | Earthworks | Kingsthorpe | Palace | Nothing visible |
| Lilbourne Castle | Timber Castle | Earthworks | |
| Lilbourne Roundhill | Hill Ground | Siege Work | Earthworks |
| Little Houghton Motte | Cliffords Hill | Timber Castle | Earthworks | Little Houghton Ringwork | Timber Castle | Cropmarks/slight earthworks |
| Long Buckby | Timber Castle Masonry Castle |
Earthworks | |
| Moor End Castle, Yardley Godion | Moreende | Masonry Castle | Earthworks | Moulton Castle Hill | Timber Castle Fortified Manor House |
Nothing visible |
| Northampton Castle | Timber Castle Masonry Castle |
Cropmarks/slight earthworks | |
| Northampton Town Wall | Urban Defence | Nothing visible | |
| Preston Capes Castle | Timber Castle | Earthworks | |
| Rockingham Castle | Timber Castle Masonry Castle |
Masonry ruins/remnants | Rushton | Gaultney; Galclint | Timber Castle | Uncertain |
| Sibbertoft Castle Yard | Timber Castle | Earthworks | Silverstone | Selveston | Fortified Manor House Palace |
Cropmarks/slight earthworks |
| Steane Castle | Fortified Manor House | Cropmarks/slight earthworks | |
| Sulgrave Castle Hill | Timber Castle Masonry Castle |
Earthworks | Thorpe Waterville Castle | Castle Barn; Thorp Watervill | Fortified Manor House Palace |
Major | Thrapston, Chancery Lane | Timber Castle Masonry Castle |
Cropmarks/slight earthworks |
| Titchmarsh Castle | Tichmarsh; Tichemersh | Fortified Manor House | Nothing visible | Towcester Town Defences | Urban Defence | Earthworks | Wadenhoe Castle Close | Uncertain | Earthworks |
| Wakefield Hunting Lodge | Palace | Nothing visible | |
| Weedon Lois Castle Mound | Lois Weedon; Wedone; Weedon Pinkney; Weedon St Loys; Loys Weedon | Timber Castle | Cropmarks/slight earthworks |
| Wollaston Beacon Hill | Timber Castle | Earthworks | |
| Wootton | Timber Castle | Cropmarks/slight earthworks |