His biographer
Frederic Harrison of Sutton Place wrote (1899): Immediately after his accession on 22 May 1509, Henry VIII appointed Weston to several offices, including that of Governor of Guernsey. In 1511, Weston served under
Thomas Darcy, 1st Baron Darcy, in the English contingent sent to assist King
Ferdinand of Spain in his campaign against the Moors. Upon his return, Weston visited the court of Spain and received considerable honour. He was knighted by Henry VIII in 1514, and from 1516, was in personal attendance on the king as a
Knight of the Body. On 3 January 1518, he was created a
Knight of the Bath. In 1519, he was one of the four "sad and ancient knights" who were "put into the king's privy chamber", i.e. he was appointed a Knight of the Privy Chamber. In 1520, he followed Henry to the
Field of the Cloth of Gold, as one of the eight county representatives for Berkshire. In 1521, he sat on the jury which tried and condemned
Edward Stafford, 3rd Duke of Buckingham. The royal manor of Sutton was granted to him on 17 May 1521, the day of the Duke of Buckingham's execution. In 1523, Weston served in France under
Charles Brandon, 1st Duke of Suffolk; in 1525, he became
Treasurer of Calais, a personal possession of the king and thus a personal appointment of great honour, and in 1528, Under-Treasurer of England. He also served as a
Knight of the Shire for
Berkshire in 1529. His main residences were
Cranbourne Lodge, where he was the keeper, and
Ufton Court, both in
Berkshire, and then
Sutton Place, Surrey, which he re-built in a ground-breaking style, the last two being granted to him by the king. In 1533, Henry VIII paid a state visit to Weston at his newly built mansion at Sutton Place.
Thomas Cromwell was a guest there later. In 1539, Weston was appointed to meet
Anne of Cleves on her arrival in England, when he must have been considerably over seventy years of age. In 1542, he surrendered his post of sub-treasurer of England "ob senectutem debilitatam et continuam infirmitatem" (20 January) and died on 7 August. He was buried in the Weston Chapel, built by him in
Holy Trinity Church, Guildford. He was succeeded in his estates by his six year-old grandson Henry Weston, the son of his executed son Francis Weston. ==Marriage and children==