Ladbroke was a partner with his father and brother-in-law, Sir Walter Rawlinson, in a London bank. In addition to the firm’s transactions,1For these, see under RAWLINSON. he was on his own account a considerable holder of Government stock: between 1780 and 1787 he bought to the value of nearly £200,000, most of which he held for a short time only.2Bank of England recs.
In 1780 and 1784 he successfully contested Warwick as the candidate of the independent party against the Earl of Warwick. He steadily opposed North; voted for Shelburne’s peace preliminaries, 18 Feb. 1783; for parliamentary reform, 7 May, and Fox’s East India bill, 27 Nov.; and opposed Pitt. His only speech before 1790 was when he introduced a bill to license a theatre at Sadler’s Wells, 11 Mar. 1788.
He died on 1 July 1814, ‘in his 75th year’.3Gent. Mag. 1814, ii. 91.