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 with a supply of venison as well as generating income. During the 15th century, England was divided by the prolonged period of civil war called the Wars of the Roses: the Luttrells were supporters of the House of Lancaster. In 1461, Sir James Luttrell died following the Lancastrian defeat at the Second Battle of St Albans, and his family were deprived of their estates by the Yorkist Edward IV. The castle was given to the Herberts, but the Luttrells regained it on the accession of the Lancastarian Henry VII in 1485, when Dunster was restored to James' son, Sir Hugh