(i) Most Hon. Richard, Marquis of Westminster.
(ii) Thomas Probert the elder, Edward Probert and Edwin Probert, all of Plas Major, parish of Mold, co. Flint, farmers, William Price of Hendre, Mold, farmer, Thomas Probert the younger of Park near Ruabon, co. Denbigh, farmer, James Griffiths of Stansty near Wrexham, farmer, Morris Roberts of Rhydycirwy, parish of Llanarmon, co. Denbigh, farmer, Thomas Roberts of Glan y Gors, parish of Llanarmon, farmer, Edward Roberts of Pant y terfyn, parish of Llanarmon, farmer, Thomas Seddon Smith of Liverpool, gent., and John Roberts of Liverpool.
Mines of lead ore in land at Mynydd du, parish of Llanarmon, containing 8 acres 0 roods 10 perches (map endorsed, showing shafts and level).
Term: 21 years.
Royalty: 20s. per ton of lead ore.