Castle Ashby House

Castle Ashby, often Castle Ashby House is a country house at Castle Ashby, Northamptonshire, England. It is one of the seats of the Marquess of Northampton. The house, church, formal gardens and landscaped park are Grade I listed.

The original castle, a manor house, came about as the result of a licence obtained in 1306 by Walter Langton, Bishop of Coventry, to castellate his mansion in the village of Ashby. Sir Gerard Braybroke was at one time of Castle Ashby Manor. It is a leading example of the Elizabethan prodigy house, with a Palladian section closing the front courtyard added in the 18th century.