(i) Rt. Hon. Edward Pryce, Baron Mostyn of Mostyn, co. Flint.
(ii) Edward Lloyd of Hafod, co. Flint, esq., John Lloyd of Holywell, co. Flint, gent., John Prys Eyton of Kinsale, co. Flint, esq., and Edward Roberts of Hendre, co. Flint, mine agent.
Mines of lead and copper ore, boose, smythom, calamine and calk in land in Halkin, co. Flint, called Plas Winter Farm, containing 61 acres 3 roods 13 perches (map endorsed).
Term: 31 years.
Royalty: one fourteenth.