Powderham. This steel engraved antique print, of Powderham Castle, Devon, published in 1845, is from ‘Curiosities of Great Britain. England and Wales Delineated. Historical, Entertaining & Commercial, Alphabetically Arranged by Thomas Dugdale, Antiquarian. Assisted by William Burnett.’ (Dugdale was a professional artist, whilst Burnett was a civil engineer by profession.) Together they produced a series of steel engraved prints of English and Welsh architectural and topographical features, together with County Maps. Thanks to Wikipedia for the linked information.
Powderham Castle is a fortified manor house situated within the parish and former manor of Powderham, within the former hundred of Exminster, Devon, about 6 miles (9.7 km) south of the city of Exeter and 1⁄4 mile (0.4 km) north-east of the village of Kenton, where the main public entrance gates are located. It is a Grade I listed building. The park and gardens are Grade II* listed in the National Register of Historic Parks and Gardens.
It is situated on flat, formerly marshy ground on the west bank of the River Exe estuary where it is joined by its tributary the River Kenn. On the opposite side of the Exe is the small village of Lympstone. The castle was expanded and altered extensively in the 18th and 19th centuries, most notably by James Wyatt in the 1790s. The castle remains the seat of the Courtenay family, Earls of Devon.