Norborne Berkeley was descended from a younger branch of the Berkeleys of Berkeley Castle, who had held the manor of Stoke since the fourteenth century.
When in 1740 Berkeley stood as a Tory for the county in conjunction with Thomas Chester Thomas Carte, the historian, reported to Rome that
Mr. B’s cousin, the Earl of Berkeley had promised him his interest; but ... Sir Robert Walpole represented to him that it was an inconsistency in him to give his interest to a gentleman who declared he stood upon an opposite interest to that of the court and join with Mr. Chester, an open enemy of the Government as well as the Administration, and it was expected he should engage all his friends and his interest against Mr. Berkeley as well as Chester.
Lord Berkeley thereupon declared against his cousin; but
young Mr. Berkeley, who ... does not want spirit and good sense, went to the Earl and representing to him that upon his assuring him of his interest he had been first encouraged to offer his services to the county ... that the gentlemen finding his Lordship declare openly against him had reason to suspect that he had imposed upon them by a false pretence to his Lordship’s promise and interest and as it was a terrible thing for a young man to enter the world with the character of a fourbe he must vindicate his own reputation and conduct and ... desire his Lordship to sign a certificate, declaring ... [he] ... had promised his cousin Berkeley his interest for the county and ... allowed him to assure the gentlemen thereof, but that finding he had joined with Mr. Chester and so embarked in an interest opposite to that of the court, he had thought fit to retract his promise and use of his interest to oppose his election.
Lord Berkeley agreed,
and now it proves that upon his promise his tenants were engaged to Mr. Berkeley, that is, they follow their inclination and not the Earl’s example in breaking their word, so that he will not be able to make ten votes against Mr. Berkeley.
Stuart mss 222/33, f. 109.
Returned unopposed, and again in 1747, Berkeley voted consistently against the Government. On 24 Apr. 1744 he carried by his casting vote as chairman of a committee of the Commons a clause in favour of the Jews in a bill for ending the monopoly of the Levant trade by the Turkey Company.
