This series is chiefly made up of conveyancing deeds and other evidences of title, although it includes too a considerable number of wills, bonds and receipts.
The series represents the greater part of around 13,000 private deeds which accumulated in Chancery. These were probably brought to Chancery for enrolment on the dorse of the close rolls (C 54) or lodged with the Court of Chancery as evidence in legal proceedings. Other deeds concern the endowments of charitable foundations under the jurisdiction of the chancellor.
More than 11,000 of the deeds deposited in Chancery now make up this series. The remainder have been divided among the three succeeding series, C 147, C 148 and C 149, according to size, the condition of the seals, and date.
Families whose deeds can be found in some quantity in this series include the Egertons, later dukes of Bridgwater, and the Strelleys of Nottinghamshire, Derbyshire and Yorkshire.
Dunstable (Bedfordshire) and Solihull (Warwickshire) are among the better-documented localities. Deeds of religious houses are not numerous, but the estate archive of the hospital of Holy Trinity alias St David's, Kingsthorpe (Northamptonshire) is relatively well-represented.