SAMPSON'S (ST.), a parish in the eastern division of the hundred of POWDER, county of CORNWALL, 4 miles (S. S. E.) from Lostwithiel, containing 248 inhabitants. The living is a perpetual curacy, annexed to the vicarage of Tywardreth, in the archdeaconry of Cornwall, and diocese of Exeter, endowed with £200 private benefaction, and £600 royal bounty. W. Rashleigh, Esq. was patron in 1815. The river Fowey is navigable on the east of this parish. Here was anciently a castle of the Earls of Salisbury, the site of which is called Castle-Dore.