1545 and 1547. Both his cousin, Henry Grey, 3rd Marquess of Dorset, and Henry Percy, 6th Earl of Northumberland, employed Arundell in the management of their estates. He also served as receiver to Queen Anne of Cleves, and Chancellor of the Household to Queen Catherine Parr. Arundell's role as one of the commissioners for the dissolution of the monasteries in the West Country enabled him to acquire a number of properties formerly belonging to religious houses. In 1547 he purchased Wardour Castle in Wiltshire. Arundell was connected by birth and marriage to the crown and to several of the most important families in England, and by the time of the death of King Henry VIII was one of the most experienced government officers in England. However, those in power at the beginning of the reign of King Edward VI removed his name from the late King's list of proposed honours, reflecting their concern with his influence and his family's devotion to the old religion. Vague and unproven allegations of complicity in the south-western rebellion in 1549 were made against him and against his brother, Sir John Arundell (c.1550–1557), leading to their imprisonment in 1550 and again in 1551, and marking the end of Sir Thomas Arundell's career. In late 1551 he temporarily aligned himself with the Protector Somerset, thereby putting himself in conflict with John Dudley, Earl of Warwick. He was arrested and charged with conspiring to overthrow the government and murder the Earl. Arundell consistently protested his innocence, but was convicted, beheaded on Tower Hill on 26 February 1552, and buried in the Church of St Peter ad Vincula. His property was confiscated, although in June 1552 the Crown began restoring it to his widow and, from 1553, to his son Matthew Arundell. His widow, Margaret, died on 10 October 1571, and was buried at Tisbury, Wiltshire. Marriage and issue By settlement dated 20 November 1530 Arundell married Margaret Howard (c. 1515 – 10 October 1571), the daughter of Lord Edmund Howard (third son of Thomas Howard, 2nd Duke of Norfolk, by his first wife, Elizabeth Tilney), and Joyce Culpeper. Margaret was the sister of Queen Katherine Howard, the fifth wife of King Henry VIII, and a first cousin of the King's second wife, Queen Anne Boleyn. By Margaret Howard, Arundell had two sons and three daughters: Sir Matthew Arundell of Wardour Castle (c.1535 – 24 December 1598), who