During the 15th century, England was divided by the prolonged period of civil war now 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 Luttrell. Hugh repaired the castle chapel and in the early 16th century his son, Sir Andrew Luttrell, built a new wall on the east side of the castle. Andrew's son Sir John Luttrell, who inherited the castle, was a famous soldier, diplomat, and courtier under Henry VIII and Edward VI, serving in France and in Scotland during the conflicts of the Rough Wooing. In 1542, the antiquarian John Leland reported the castle keep and buildings to be considerable disrepair, with the exception of the chapel, and after Sir John's death the castle was leased out for several years, first by his daughter, Mary, and then under his brother, Thomas.