Antique print of Trematon Castle, situated near Saltash in Cornwall, England, United Kingdom. It was the caput of the feudal barony of Trematon. It is similar in style to the later Restormel Castle, with a 12th-century keep. Trematon Castle overlooks Plymouth Sound. Antique copper-plate engraving dated in the plate Aug 7th 1787. Size of engraved area approx 5x6ins. .