MACKWORTH, Herbert (1737-91), of Gnoll, Glam.
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Family and Education
b. 1 Jan. 1737, o.s. of Herbert Mackworth. educ. Westminster 1748; Magdalen, Oxf. 1753; L. Inn 1754, called 1759. m. 13 May 1761, Elizabeth, da. of Robert Cotton Trefusis of Trefusis, Cornw., 2s. 1da. suc. fa. 20 Aug. 1765; cr. Bt. 16 Sept. 1776.
Like his father, Mackworth was active in developing the industrial enterprises on the Gnoll estate: his main concern was with the Gnoll Copper Company, with works at Neath,1 which by 1777 appears in the London directories as having its headquarters at Monument Lane in the City. And in June 1781 Mackworth applied to the Treasury on behalf of the company for the right to supply the copper necessary for the coinage ordered for Ireland.2 He also extended the coal-mines on his estate, and founded and ran a local bank.
Mackworth controlled two of the Cardiff boroughs, but it was with the additional support of the Windsor interest that he was returned unopposed in 1766 and at all his subsequent elections. In Parliament he was thoroughly independent, and spoke very frequently on a wide variety of subjects. He appears in two of the three extant division lists as having voted with Opposition on the land tax, 27 Feb. 1767, though Newcastle in his list of 2 Mar. classed him as an Administration supporter. In the ensuing Parliament he voted with Opposition on the expulsion of Wilkes, 3 Feb. 1769, and the Middlesex election, 15 Apr. and 8 May, declaring on 3 Feb.:3 ‘My mind is distressed to give a vote ... I shall go against his Majesty’s ministers, but my principle is to support them.’ He again voted with Opposition on the Middlesex election, 25 Jan. 1770. On 22 Nov., criticizing an Opposition motion for the production of papers concerning the Falkland Islands dispute, he declared:4 ‘I have confidence in the ministers. I have acted against them, I have voted against them, and shall vote again, but I shall not upon this ground say I have no confidence.’ And though he voted with them on this occasion, he again opposed them on 13 Feb. 1771 over the settlement of the dispute. He once more voted with Administration over Brass Crosby, 27 Mar. 1771, but in Robinson’s first survey on the royal marriage bill, March 1772, he was listed as ‘doubtful, present’. When on 9 Feb. 1773 he voted with Opposition on the naval captains’ petition he was marked in the King’s list as a friend, and though he also voted with Opposition on the Middlesex election, 26 Apr. 1773, and on Grenville’s Election Act, 25 Feb. 1774, he was classed by Robinson in September 1774 as ‘pro’.
On 31 Oct. 1776, emphasising his position as an independent country gentleman, he said:5
He did not like to hear gentlemen so ready to find a plea for the Americans on every occasion ... He was ever most clearly against the House attempting to tax America as America was not represented in that House; but he thought it highly necessary to maintain that right; and that it was but reasonable America should contribute something in return for the millions she had cost this country. He spoke highly in favour of some of the gentlemen in Opposition, but applauded the ministry.
He does not appear in any of the minority lists, February 1775-December 1778, but in Robinson’s list on the contractors bill, 12 Feb. 1779, he is listed as ‘contra, present, friend’. He voted with Opposition over Keppel, 3 Mar. 1779, and his only other recorded vote d