Chiborne’s father, a minor but active Essex j.p. who briefly lost his seat on the bench in 1587,
Chiborne entered into his inheritance in April 1606. A rental of 1618 claims that the total rents due from all three of Chiborne’s Essex manors amounted to just £10 17s. 4d., but this may have been misleading. The manor of Messing was described as valuable by the nineteenth-century antiquary Thomas Wright, while the two remaining manors - Bourchiers and Harborough - alone yielded the Court of Wards a yearly rent of £66 13s. 4d. after Chiborne’s death.
Following the death of his first wife in 1606, Chiborne married a younger daughter of William Wiseman, Member for Maldon, a shrewd match as it undoubtedly helped him secure the recordership of Maldon, which Wiseman had recently vacated. On Wiseman’s death in January 1610, Chiborne may have expected to assume possession of his parliamentary seat, but the corporation was already engaged to Sir John Sammes, whom it had been forced to disappoint five years earlier. A second by-election, occasioned by the summons to the Lords of Theophilus Howard, also saw Chiborne passed over, this time in favour of Sir Robert Rich. It was therefore not until March 1614 that Chiborne, now a bencher, was elected to Westminster,
Less than eight weeks after Parliament was dismissed, Chiborne was elevated to the serjeantcy.
In January 1619 Chiborne was appointed counsel to Prince Charles, who subsequently had him knighted. Later that year Chiborne attended Queen Anne’s funeral as an official mourner,
