Maynard’s ancestors hailed from Devon, though his grandfather John settled in St. Albans, Hertfordshire, representing the borough in Parliament during the 1550s. Maynard’s father Henry rose to prominence as one of the principal secretaries to Lord Burghley (Sir William Cecil†), and acquired a large estate in western Essex, centred on Little Easton. His local standing was reflected in his election in 1601 as an Essex knight of the shire, and he subsequently became one of the county’s deputy lieutenants.
With Salisbury seeking to bolster his support in the House of Commons ahead of a new parliamentary session in February 1610, Maynard was an obvious choice to fill a vacant seat at Penryn, where the electoral patrons were the earl’s kinsmen, the Killigrews. Named in this fourth session to scrutinize eight bills in committee, he is likely to have taken an interest in at least one (20 June), an attempt to block construction of the proposed New River, which would run less than 15 miles from Little Easton. The other bills dealt with debt repayments (20 Feb.), subscription to the articles of religion (14 Mar.), hawking (17 Apr.), elopement (8 May), and the estates of the Mildmay and Drury families (20 Feb., 27 and 31 March).
On his father’s death in May 1610, Maynard inherited at least 10,000 acres in Essex, and his local prestige was further enhanced in the following year by the acquisition of a baronetcy, presumably with Salisbury’s encouragement.
In 1615 Maynard took as his second wife the daughter of one of his former colleagues on the Essex bench, Sir Anthony Everard.
Politically, and again unlike Warwick, Maynard aligned himself with the Court. That said, he was clearly not closely attuned to the government’s electoral plans in 1624. Prince Charles’s Council, which was helping to find seats for courtiers that year, nominated his younger brother John, a client of the duke of Buckingham, for a seat at St. Albans. John also stood at Chippenham, and Maynard, assuming that his sibling would be successful at St. Albans, tried to influence the Wiltshire borough in favour of another of his brothers, Charles. In the meantime the Prince’s Council had withdrawn its nomination, presuming that there would be a smooth outcome at Chippenham, and in the resultant confusion John came close to losing both seats.
During the 1630s Maynard’s close friendship with Archbishop Laud tied him still more closely to the government. An active commissioner for knighthood compositions, he was appointed joint lord lieutenant of Essex in 1635, essentially as a counterbalance to Warwick.
