Soldon in the parish of Holsworthy, Devon, is an historic estate, noted as a seat of the Prideaux family. The manor house is a grade II listed building dating from the mid-16th century with later alterations. It was sold in 2014 as an eight bedroomed house with 1 1/2 acres of grounds for an asking price of £750,000.
The earliest known holder of Soldon was the de Soldon family which took its surname from the estate. Pole (d.1635) records one of these owners as Stephan de Soldon, but without date.
Soldon was purchased by a junior branch of the Prideaux family, which also purchased the lordship of the manor of Holsworthy from the crown.
The Prideaux family is believed to be of Norman origin and to have first settled in England at some time after the Norman Conquest of 1066 at Prideaux Castle, near Fowey, in Cornwall. It abandoned that seat and moved to Devon, where it spread out in various branches, most notably at Orcharton, Modbury; Adeston, Holbeton; Thuborough, Sutcombe; Solden, Holsworthy; Netherton, Farway; Ashburton; Nutwell, Woodbury and Ford Abbey, Thorncombe. Another branch built Prideaux Place in Cornwall in 1592, where it survives today. It was one of the most widespread and successful of all the gentry families of Devon, and as remarked upon by Swete (d.1821), exceptionally most of the expansion was performed by younger sons, who by the custom of primogeniture were expected to make their own fortunes.