On 18 December 1544 Wroth was returned to parliament as one of the knights of the shire for
Middlesex, and in the following year, reputedly through
Thomas Cranmer's influence, was appointed Gentleman-Usher of the Privy Chamber to
Prince Edward. He served in that office during Edward VI's reign, being dubbed a
Knight of the Carpet at the King's coronation on 22 February 1546/7, and was one of the young king's principal favourites. In September 1547 he was sent to the Protector
Edward Seymour, 1st Duke of Somerset in Scotland with Edward's letters congratulating him on his victory at the
Battle of Pinkie, and in July 1548 was one of the witnesses against Bishop
Stephen Gardiner for his sermon in
St. Paul's Cathedral. He probably represented Middlesex in the parliament that sat from 1547 to 1552, but the returns are wanting. After Somerset's fall Wroth was on 15 October 1549 appointed one of the four principal gentlemen of the privy chamber, his fidelity to the
Earl of Warwick's interests being secured by doubling the ordinary salary of £50. With Lord Rich he was jointly lieutenant of
Waltham Forest from 1549. He held the office of King's standard-bearer during the minority of Sir Anthony Browne the younger. Wroth received 'an astonishing prodigality of grants of land, lordships, reversions, hereditaments'. In December 1549, extended in July 1550, he was granted the Great and Little Parks of
Great Bardfield, and the lordships and manors of
Chigwell and West Hatch (Chigwell) in
Essex. He was granted, but at once surrendered, the offices of keeper or steward of the manors of Elsing and Worcetors at Enfield, and of Edmonton, and Keeper and Master of the Hunt of the New Park at Enfield, in reversion. The manors of Northall and Downebarnes (
Northolt, Middlesex) and
Hampstead, and the advowson of
Greenford (Middlesex) came to him by royal
Letters Patent in April 1550. On 14 April 1551 he was made
Lord Lieutenant of Middlesex jointly with
William Paget. He received grants of
Bishops Lydeard in Somerset,
Theydon Bois,
Berden Priory and elsewhere in 1551, and of
Abingdon Abbey, Berkshire, in 1552. On 29 November 1551 he was present at the disputation on the Sacrament held in
William Cecil's house. In the time of King
Henry VI William Wrothe had held the valuable office of
Forester of
Petherton Park at
North Petherton in Somerset, in succession to the Chaucer family. In 1508 Robert Wroth, father of Sir Thomas, was granted the same title by
Henry VII for a term of 30 years, although the same was granted by
Henry VIII to
William Courtenay in 1513. In 1550 Sir Thomas petitioned King Edward to be admitted forester in fee of the King's Forests of
Exmoor,
Neroche,
Mendip and
Selwood, in consideration of the fact that he was a descendant and representative of William de Wrotham (who had been lord of the manor of Newton-Forester (nearby) during the time of King
Richard I), and that he (Thomas) was inheritor and possessor of the greater part of that manor (among several others now combined as Newton-Wrothe). In October 1551 he was granted licence for his servants to shoot at fowl, mammals, fishes or deer with crossbows or handguns, an especially reserved right. The Wroth lands at Petherton descended to Robert Wroth (1576–1614, grandson of Sir Thomas by his son Robert, and husband of
Mary Sidney (Lady Wroth)), who dissipated them, and after his death were purchased by Sir
Thomas Wroth (grandson of Sir Thomas by his son Thomas of
Bexley), who re-established the Wroth fortunes at Petherton Park. Somerset's second fall brought Wroth further grants; on 22 January 1552, the day of the Protector's execution, he was sent to
Sion House to report on the number and ages of the duke's sons, daughters, and servants, and on 7 June following was given a twenty-one years' lease of Sion. This he is said to have surrendered on an assurance that Edward designed it for some public charity. He received the manor of
Basettes Fee, and
St Leonard's Forest and manor at
Horsham, Sussex, from the attainder of the Duke of Norfolk. In 1552, and again in 1553, he was one of the commissioners for the lord-lieutenancy of Middlesex, and in February 1552/3 he was again knight of the shire for Middlesex in Edward's last parliament. He was not a member of the privy council, but was one of those whom Edward VI proposed in March 1551/2 to 'call into commission,’ his name appearing on the committees of the council which were to execute penal laws and proclamations and to examine into the state of all the courts, especially the new courts of augmentations, first-fruits and tenths, and wards. In December 1552 he was placed on a further commission for the recovery of debts owing to the king from his paymasters. He was one of the adventurers (investors) in the 1552 Second voyage to Barbary (Morocco), led by
Thomas Wyndham, which traded for three months at
Santa Cruz de Tenerife. He was also among the investors in the first voyages of Sir
Hugh Willoughby and
Richard Chancellor in search of a north-east passage to
Cathay: his name appears among the incorporated founders of the
Company of Merchant Adventurers to New Lands listed in Mary's charter of February 1554/55, though already then living abroad in exile. == Exile 1554–1558 ==