Sir Robert Pierrepont was a major English landowner who purchased extensive estates in several counties, including the Yorkshire estate of Adwick upon Dearne, and was created Earl of Kingston-upon-Hull in 1628.

The University of Nottingham is the authority for the specific Adwick upon Dearne acquisition.

Research sources:
- University of Nottingham Manuscripts and Special Collections, Manvers Collection: Family Seats, section on the Pierrepont estate and Yorkshire properties. — https://www.nottingham.ac.uk/manuscriptsandspecialcollections/collectionsindepth/family/manvers/familyseats.aspx