Croft was the eldest son of one of the most prominent parliamentarians of the early Jacobean period. He was first elected to Parliament in 1614 for the Cornish borough of Launceston, even though he was still under-age. He may have owed his election to the intervention of the Scottish favourite Robert Carr, 1st earl of Somerset, whom his father was busy cultivating, or to some local connection, as his father had sat for the same borough in 1597. He is mentioned only once in the surviving records of the Addled Parliament, on 18 Apr., when he was appointed to the committee for the bill to abolish the power of the Crown to legislate for Wales.
Croft tried unsuccessfully to mend the feud between his own family and that of the Coningsbys, which dated back to the Elizabethan period. While in Paris in 1616 he approached Fitzwilliam Coningsby’s* friend (Sir) Thomas Littleton* to act as an intermediary, and sometime thereafter a match with Coningsby’s daughter Ursula was proposed. However, Ursula refused to contemplate marriage with the son of her father’s enemy.
After his father fled abroad in 1617 to avoid his creditors Croft was for all practical purposes head of the family. He had been forced to consent when his father conveyed a significant part of the family estates to the Crown to settle debts; part were subsequently sold, but trustees for the family retained possession of the rest, including Croft Castle.
Croft was probably returned for Malmesbury in 1626 on the interest of the earl of Somerset’s father-in-law, Thomas Howard, 1st earl of Suffolk. He was named to five committees in the second Caroline Parliament, three of them for private bills, and was appointed to attend the joint conferences with the Lords of 4 Mar. on the summons issued by the Commons to Buckingham, and of 7 Mar. on military strategy.
Croft had returned by 1628, when he was re-elected at Malmesbury. He was named to five committees, none of major importance, and made five speeches. In a conciliatory effort he desired the Commons on 2 May ‘to appoint the days for the payment of subsidies’ before going into committee on the liberty of the subject; ‘that will make a fair introduction to bring on the business’.
Little is known of Croft for the next decade, during which time he is sometimes confused with the son of Sir Henry Crofts*, who was prominent at Court. He had to sell Gatley Park in north Herefordshire to Sampson Eure* and recovered Croft Castle from his mother only by virtue of a favourable decision by Coventry in Chancery. He had to pay rent to the Crown but at the time of the Civil War his estate was said to be worth £2,000 a year.
