Launceston Castle. Antique print of Launceston Castle located in the town of Launceston, Cornwall, England. The castle is a Norman motte and bailey castle raised by Robert, Count of Mortain, half-brother of William the Conqueror shortly after the Norman conquest. Antique copper-plate engraving dated in the plate Nov 24th 1784. Size of engraved area approx 5x6ins. price shown is ex VAT.