Feudal barony of Dunster Fownes (c. 1722 – 1780), who under his father-in-law's will inherited the Luttrell estates including Dunster Castle, with the proviso that he should adopt the surname and arms of Luttrell. Henry Fownes (c. 1722 – 1780), who married the heiress Margaret Luttrell (1726–1766) and under his father-in-law's will inherited the Luttrell estates including Dunster Castle, with the proviso that he should adopt the surname and arms of Luttrell. He was High Sheriff of Somerset from 1754 to 1755, and a Member of Parliament for Minehead from 1768 to 1774. The couple modernised the Castle, in the Georgian style, which included
Dunster Castle ran up new debts, and the castle was handed over into the control of a receiver. Henry Fownes Luttrell, who married Margaret, Alexander's daughter, and took the Luttrell name, moved to Dunster in 1747. The couple redesigned and redecorated the castle in a Rococo style, including the extensive use of the recently invented and highly fashionable wallpaper. Henry Luttrell raised the ground height of the Lower Ward between 1764 and 1765 to extend the New Way all around to the front of his mansion, adding additional ornamental towers onto the inside of the Great Gatehouse in the process. A folly,