| Abbreviation | Definition |
|---|---|
| CIM | Calendar of Inquisitions Miscellaneous |
| CIPM | Calendar of Inquisitions Post Mortem |
| citz | citizen |
| CL.CRT. | Clerk of the Court |
| CO | County |
| COD | Codicil of a will |
| CODD | Codices |
| COH | CO-Heir |
| COL | COLored |
| COLL | COLLege |
| Cous. | cousin |
| CP | Compete Peerage |
| CP&MR | Calendar of Plea and Memoranda Rolls |
| CPR | Calendar of Patent Rolls |
| crem. | cremated |
| CT | CourT |
| CUZ | Cousin |
| D | Daughter |
| D | Died |
| d. | date/place of death |