(i) Sir Roger Mostyn of Mostyn, Baronet.
(ii) Henry Steeple of Holywell, co. Flint, gent., and William Coyney of Holywell, apothecary.
Mines of lead, copper, caulk and calamine under fields in the township of Brynford in the parish of Holywell, co. Flint, called Coed Caer Dderwen, Coed Cae Gwair and Adwyamod.
Term: 21 years.
Rent: 30s. per ton of lead ore, boose and smitham, one seventh of all copper found, and 15s. per ton of caulk and calamine.