(i) Most Noble the Marquis of Westminster.
(ii) William Williamson the elder of Greenfield, co. Flint, esq., Elizabeth Parry of Henblas, parish of Holywell, co. Flint, widow, and Samuel Williamson of Holywell, gent.
Mines of lead ore in land on Halkin [Halkyn] Mountain named Parry's Mine, containing 44 acres 3 roods 10 perches (bounds given) (map endorsed).
Term: 21 years.
Royalty: 25s. per ton of lead ore.