(i) Rt. Hon. Robert, Earl Grosvenor, Viscount Belgrave of Eaton, co. Chester.
(ii) James Kyrke of Frith Lodge, Brymbo, co. Denbigh, miner and lead smelter, Richard Kirk of Gwersyllt Hill, parish of Gresford, co. Denbigh, esq., John Burton of Minera, parish of Wrexham, co. Denbigh, esq. and John Phillips of Minera, miner.
Mines of lead ore, calamine and black jack in waste or common land called Minera Mountain, parish of Wrexham, hundred of Bromfield, and in enclosed lands called Esclusham Park, parish of Wrexham (excepting such part of the park and waste as was granted to said Richard Kirk, John Burton and James Kyrke, upon the range of the Marrian Vein) (map endorsed).
Term: 21 years.
Royalty: 30s. per ton of lead ore when under £12 a ton, with an addition of 2s. 6d. when £13, and so on in like proportion; 15s. per ton of calamine and 10s. per ton of black jack.
Endorsed: 'Expired 30 September 1843'.