He was commissioned a
cornet in the King's troop,
Royal Regiment of Horse Guards in 1661. He may have unsuccessfully contested
Stamford that year; his father, a royalist, joined with interest of the Hatcher family,
Presbyterians, to oppose the borough's principal patron, the
Earl of Exeter, but in the event it was Exeter's candidates,
William Stafford and
William Montagu that were returned. The election was appealed
on petition, but the election committee resolved that the franchise in Stamford was limited to freemen paying
scot and lot only, and the election of Stafford and Montagu was upheld. After Stafford died in 1665, Bertie was returned at the ensuing by-election. • Bridget Bertie (d. 23 March 1748), married on 14 April 1702
John Poulett, 1st Earl Poulett; • Elizabeth Bertie (b. 6 December 1675), died unmarried; • Mary Bertie, married first
Anthony Henley, second
Henry Bertie (d. 1735), her half-first cousin. He was removed from the Westminster commission of assessment in 1674, and was made a commissioner of the
Alienation Office in August 1675, replacing Alexander Halsall. During that year, he was the teller against the adjournment of debate on the King's Speech. and from 1677 to 1678, he was the receiver of ship tax in
Kent. Not surprisingly, given his official appointments, Bertie was identified by his contemporaries with the court party. The
Exclusion Crisis had weakened the Berties' position; the Stamford electors were now indifferent to the sensibilities of the Court, and Exeter's electoral interest was strong enough that both Charles and Peregrine withdrew from the contest without a poll. and Bertie was to make his residence there for the rest of his life. In 1680, he was removed as a commissioner of assessment in Lincolnshire and appointed a
justice of the peace in the
Parts of Holland and
Lindsey, and he became a member of the
Honourable Artillery Company in 1682. He exchanged his post as a deputy searcher of customs for that of a surveyor of landwaiters in 1683, replacing the late Samuel Cust; he was succeeded by Edward Le Neve. By 1686, he had become surveyor of the searchers instead. ==Under James II==