Feudal barony of Dunster King Henry VII (1485–1509), he obtained the reward from that king of a reversal of his father's attainder and received restoration of his lands from the Herberts, who had never lived at Dunster, having been long seated in Wales. He was instrumental in quelling the rebellion in Devon. In 1487 on the coronation of the queen he was appointed K.B.. He was Sheriff of Somerset and Dorset in 1488. He erected the surviving sculpted stone heraldic panel above the western arch of the Gatehouse to Dunster Castle, showing on six shields (a further two blank) the arms of Luttrell, Beaumont,
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,