Oldcastle Revolt
13th century proto-protestant uprising

The Oldcastle Revolt was a Lollard uprising directed against the Catholic Church and the English king, Henry V. The revolt was led by John Oldcastle, taking place on the night of 9th to the 10th of January 1414. The rebellion was crushed following a decisive battle on St. Giles's Fields.
Background
John Oldcastle was born in 1370 and in 1397 inherited his family estates, which included a manor in Almeley as well as lands in Kinnersley and Letton, Herefordshire, and property in and around Hereford. In July 1397, Oldcastle accompanied two Mortimer family retainers to Ireland, later serving under Roger Mortimer. Oldcastle was knighted in 1400, and took part in a campaign against Scotland the same year. In the aftermath of the 1401 outbreak of the Glyndŵr Rising, Oldcastle was appointed captain of Built and later Hay. In January 1404, Oldcastle briefly gained a Parliament seat representing Herefordshire, and was subsequently ordained a country bench member and, finally, sheriff. His loyal service during the pacification of Wales brought him 40 pounds of annuities and an additional issue of 40 marks in 1406. In 1408, he further increased his material wealth by marrying baroness Joan Cobham, thus inheriting lands in Norfolk, Northamptonshire, Wiltshire and Kent.
This brief starts where responsible research should: with the source description of “Oldcastle Revolt” as 13th century proto-protestant uprising. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as 13th century proto-protestant uprising. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q20713372. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1414, 1370, 1397 and 1400.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Oldcastle Revolt”, its source revision and the description used here.
- Expand the search: follow Oldcastle Revolt primary sources, Oldcastle Revolt archive and Oldcastle research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Oldcastle Revolt”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Oldcastle Revolt” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.