(i) Rt. Hon. Robert, Earl Grosvenor, Viscount Belgrave, Baron Grosvenor of Eaton, co. Chester.
(ii) John Parry of Gardden Hall, co. Denbigh, esq., Griffith Griffiths, farmer, Joseph Owens, gent., and Edward Jones, mine agent, all of Rhuabon [Ruabon], co. Denbigh, Thomas Hughes of Lixwm, parish of Ysceifiog, co. Flint, miner, and Robert Cartwright of Coed y Cyll, parish of Ysceifiog, farmer.
Mines of lead ore, calamine and black jack at Pant y Pydew, parishes of Holywell and Ysceifiog, containing 18 acres 0 roods 11 perches (map endorsed).
Term: 21 years.
Royalty: 40s. per ton of lead ore, 20s. per ton of calamine, and 10s. per ton of black jack.