(i) Most Hon. The Marquis of Westminster.
(ii) Thomas Edgworth of Wrexham, co. Denbigh, gent., John Inman of Bolton, co. Lancaster, engine manufacturer, John Devereux Pugh of Wrexham, gent., and Martin Dunn of Adw-y-r clawdd, near Wrexham, mine inspector.
Mines of lead ore in land at Cefn Cilcen, parish of Cilcen [Cilcain], containing 43 acres 1 rood 4 perches (bounds given) (map endorsed).
Term: 21 years.
Royalty: 20s. per ton of lead ore.