A family historian's guide to one of the richest — and most misunderstood — genealogical sources in The National Archives.
If your research has led you to a document catalogued somewhere in The National Archives' C department, the Court of Chancery, you have probably run into two different kinds of record wearing very similar clothes: pleadings and depositions. They are not the same thing, and knowing which one you are holding changes what you should expect to find in it. This guide explains the difference, walks through how a deposition actually came to be written, and gives you the vocabulary to make sense of one when it lands in front of you.
Chancery was England's court of equity, sitting alongside — and often overlapping with — the common law courts. Where the common law courts dealt in fixed, narrowly defined actions, Chancery could hear almost any dispute a plaintiff felt was unjustly unresolved: contested inheritances, disputed trusts, marriage settlements, boundary and tenancy quarrels, debts, guardianship of orphans, and a great deal else. It operated in some form from the medieval period through to 1875, when the Judicature Acts folded it into the new High Court of Justice.
Because a Chancery case could touch almost any corner of family or property life, and because it generated far more paperwork per case than most other courts, its surviving records are an unusually rich seam for genealogists — provided you can tell which piece of the paper trail you are looking at.
A Chancery case moved through several distinct stages, and each stage produced its own kind of document. Genealogists often use "Chancery records" loosely to mean all of it, but the two categories behave quite differently on the page.
The case opened with a Bill of Complaint: the plaintiff's written statement of their grievance, addressed formally to the Lord Chancellor. The defendant then filed an Answer, and further rounds — a Replication from the plaintiff, sometimes a Rejoinder from the defendant — could follow. These are pleadings: formal legal argument, often dense with genealogical detail because establishing who was related to whom, and how, was frequently the whole point of the case.
At The National Archives, pleadings from this period sit in a run of series named after the Six Clerks who filed them — C 5 (Bridges), C 6 (Collins), C 7, C 8 (Mitford), C 9 (Reynardson) and C 10 (Whittington) cover roughly 1613–1714 between them; C 11 continues 1714–1758, C 12 1758–1800, and C 13 1801–1842. Earlier material sits in C 1 to C 4.
A deposition is a different kind of document: sworn witness testimony, taken outside the courtroom and read back into the case as evidence. This is the part of the process this guide is really about.
Depositions taken from witnesses in London and its immediate surroundings sit in C 24 (1534–1867). Depositions taken "in the country" — by a local commission, from witnesses who could not conveniently attend London — sit in C 21 (1538–1670) and C 22 (1649–1714), with unused or sealed depositions in C 23. The two kinds are catalogued separately from the pleadings they relate to, which is why a single Chancery dispute can leave its paper trail scattered across two or three different series at Kew.
Once a case had reached the stage of gathering evidence, each side drew up a list of written questions — Interrogatories — that they wanted put to their own or the opposing side's witnesses. These questions were not asked in open court. Instead, the witness (the deponent) was brought before an Examiner of the court — or, if they lived too far from London to travel, before a small panel of local Commissioners appointed for that case — and the interrogatories were read to them one at a time. The deponent's answers were taken down, sworn to, and returned to the court as the deposition.
This matters for two reasons. First, because a deposition answers questions the reader cannot see (the interrogatories themselves, if they survive, are a separate document — sometimes in the same bundle, sometimes not), a deposition can feel oddly one-sided: you are reading answers to a conversation you were not shown. Second, because the examination was private and formulaic, depositions tend to open with a standard block of identifying information before the witness's actual answers begin — and that opening block is often the single most useful sentence in the document for a family historian.
"[Name] of [parish/place], in the county of [county], [occupation], aged [age] years or thereabouts, sworn and examined, saith..."
That one line can hand you a name, a place of residence, an occupation, and an approximate birth year — all independently corroborated by the fact that the witness swore to it under oath. It is worth reading slowly, because scribes sometimes compressed it heavily with suspension marks, and a misread word here (a wrong parish, a wrong age) can send genealogical research off in the wrong direction entirely.
Read the opening formula first, separately from the rest. It is usually the most formulaic — and therefore the most decipherable — part of the page, and getting it right anchors your reading of the harder, freer prose that follows.
Expect repetition across several depositions in the same case. Multiple witnesses were often asked the same or very similar interrogatories, so if one deponent's answer to a particular question is damaged or illegible, a second deponent's answer to the same question — worded slightly differently — can sometimes confirm the sense of it.
Check whether you are holding the deposition or the interrogatories it answers. If a set of numbered questions with no sworn testimony attached turns up in the same bundle, that is the interrogatories, not the deposition — useful context, but a different document with a different evidential weight.
Note the place of examination. A deposition taken "at Milnthorpe" or "at Wakefield" under a commission tells you where the witness actually lived or was found, which can be a more reliable geographical clue than the parish named in the Bill of Complaint itself.
| Series | Covers | Date range |
|---|---|---|
| C 21 | Country depositions, Series I | 1538–1670 |
| C 22 | Country depositions, Series II | 1649–1714 |
| C 23 | Unused / sealed depositions | c1558–c1901 |
| C 24 | Town depositions (London area) | 1534–1867 |
Depositions are usually catalogued by the short title of the case (the first-named plaintiff against the first-named defendant), so the most direct route in is almost always via the related pleadings — find the Bill of Complaint in the appropriate C 1–C 13 series first, and the depositions taken in that same case often follow from there.
Series descriptions and date ranges checked against The National Archives' own catalogue descriptions for C 1–C 13 and C 21–C 24 (Discovery / beta catalogue, nationalarchives.gov.uk). Always worth checking the live catalogue entry for the specific piece you are working from, as arrangement and coverage can vary within a series.
Chancery depositions are dense, formulaic, and full of exactly the abbreviations that make secretary and later hands hard going for a non-specialist. Send me a photograph or scan for a free sample transcription.
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