(i) Rt. Hon. Robert, Earl Grosvenor, Viscount Belgrave, Baron Grosvenor of Eaton, co. Chester.
(ii) Samuel Edwards of Halkin [Halkyn], co. Flint, miner, Henry Martin of the same, miner, Thomas Lloyd of the same, miner, John Hooson of Northop, co. Flint, miner, and John Williams of Park y Presse, Ysceifiog, co. Flint, miner.
Mines of lead ore, calamine and black jack in land at Penybillins, parish of Halkin, containing 11 acres 2 roods 32 perches (bounds given) (map endorsed).
Term: 21 years.
Royalty: 40s. per ton of lead ore, 20s. per ton of calamine, and 10s. per ton of black jack.