Book of Armagh
The Book of Armagh or Codex Ardmachanus (ar or 61) (Leabhar Ard Mhacha), also known as the Canon of Patrick and the Liber Ar(d)machanus, is a 9th-century Irish illuminated manuscript written mainly in Latin. It is held by the Library of Trinity College Dublin (MS 52). The document is valuable for containing early texts relating to St Patrick, the 7th century Irish bishop Tírechán, the Irish monk Muirchú.
Book of Armagh

Anonymous Unknown author · digitalcollections.tcd.ie · Public domain
- Name
- Book of Armagh
- Date
- 807
- Material
- parchment · vellum
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
The Book of Armagh or Codex Ardmachanus (ar or 61) (Leabhar Ard Mhacha), also known as the Canon of Patrick and the Liber Ar(d)machanus, is a 9th-century Irish illuminated manuscript written mainly in Latin. It is held by the Library of Trinity College Dublin (MS 52). The document is valuable for containing early texts relating to St Patrick, the 7th century Irish bishop Tírechán, the Irish monk Muirchú.
Admitted source layer · organised and presented by VALÉORINE
Note VALÉORINE
No house-authored Note is published until its assertions and sources pass the VALÉORINE evidence contract. The documentary article remains available in full while that enrichment is being consolidated.
Documentary enrichment in progress · no unsupported statement published
Reference Check
Propose documentary evidence for Book of Armagh. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
Documentary evidence
Evidence Panel
not yet certified
- Identity
- resolved
- Independent source families
- 0
- Admitted assertions
- 0
- Open conflicts
- 0
Authority files
wikidata · Q997846 · wikipedia · Book of Armagh
In this article
The object
The object
The book contains some of the oldest surviving specimens of Old Irish and for being one of the earliest manuscripts produced by an insular church to contain a near complete copy of the New Testament.
Key facts
Key facts
• Name — Book of Armagh • Alternative Title S — Codex Ardmachanus • Also Known As — Liber Ar(d)machanus (Book of Armagh), Canoin Phatraic (Canon of Patrick) • Ascribed To — Ferdomnach of Armagh, St Patrick, Sulpicius Severus and others • Language — Latin, Old Irish • Date — 9th century • State Of Existence — Incomplete • Manuscript S — TCD MS 52 • Length — 222 folios (folios 1 and 41-44 are missing)
History
History
The manuscript was once reputed to have belonged to St. Patrick and, at least in part, to be a product of his hand. Research has determined, however, that the earliest part of the manuscript was the work of a scribe named Ferdomnach of Armagh (died 845 or 846). Ferdomnach wrote the first part of the book in 807 or 808, for Patrick's heir (comarba) Torbach, abbot of Armagh. Two other scribes are known to have assisted him. The people of medieval Ireland placed a great value on this manuscript. Along with the Bachal Isu, or Staff of Jesus, it was one of the two symbols of the office for the Archbishop of Armagh. The custodianship of the book was an important office that eventually became hereditary in the MacMoyre family. It remained in the hands of the MacMoyre family in the townland of Ballymoyer near Whitecross, County Armagh until the late 17th century. Its last hereditary keeper was Florence MacMoyer. By 1707 it was in the possession of the Brownlow family of Lurgan. It remained in the Brownlow family until 1853 when it was sold to the Irish antiquary, Dr William Reeves. In 1853, Reeves sold the Book to John George de la Poer Beresford, Archbishop of Armagh, who presented it to Trinity College, Dublin, where it can be read online from the Digital Collections portal of the Trinity College library.
Manuscript
Manuscript
• Illustration — Folio 32v with symbols of the Evangelists The book measures 195 by. The book originally consisted of 222 folios of vellum, of which 5 are missing. The text is written in two columns in a fine pointed insular minuscule. The manuscript contains four miniatures, one each of the four Evangelists' symbols. Some of the letters have been colored red, yellow, green, or black. The manuscript is associated with a tooled-leather satchel, believed to date from the fifteenth century. It contains text of Vulgate, but there are many Vetus Latina readings in the Acts and Pauline epistles.
Additional pages
Additional pages
Book of Armagh page S-17 Book of Armagh page S-155
Illumination
Illumination
The manuscript has three full-page drawings, and a number of decorated initials in typical Insular style. Folio 32v shows the four Evangelists' symbols in compartments in ink, the eagle of John resembling that of the Book of Dimma. Elsewhere yellow, red, blue and green are used.
Dating
Dating
The dating of the manuscript goes back to Rev. Charles Graves, who deciphered in 1846 from partially erased colophons the name of the scribe Ferdomnach and the bishop Torbach who ordered the Book. According to the Annals of the Four Masters Torbach died in 808 and Ferdomnach in 847. As Torbach became bishop in 807 and died in 808 the manuscript must have been written around this time. Unfortunately to make the writing better visible Graves used a chemical solution and this had the effect that the writing related to the scribe and bishop is not readable any more.
Contents
Contents
The manuscript can be divided into three parts:
New Testament material
New Testament material
The manuscript also includes significant portions of the New Testament, based on the Vulgate, but with variations characteristic of insular texts. In addition, prefatory matter including prefaces to Paul's Epistles (most of which are by Pelagius), the Canon Tables of Eusebius, and the Letter of Jerome to Pope Damasus are included.
Life of St Martin
Life of St Martin
The manuscript closes with the Life of St. Martin of Tours by Sulpicius Severus.
History of the document
Dated record
History of the document
Explore 807–1996
The full dated record · 4 entries
807
Book of Armagh created.
1954
St. Patrick's Confessio and the Book of Armagh (1954) is digitised and catalogued by Open Library.
1979
The Patrician texts in the book of Armagh (1979) is digitised and catalogued by Open Library.
1996
Liber Ardmachanus - The Book of Armagh (1996) is digitised and catalogued by Open Library.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
- Ireland
Texts relating to St Patrick
The first part contains important early texts relating to St. Patrick. These include two Lives of St. Patrick, one by Muirchu Maccu Machteni and one by Tírechán. Both texts were originally written in the 7th century. The manuscript also includes other miscellaneous works about St. Patrick, including the Liber Angueli (or the Book of the Angel), in which St. Patrick is given the primatial rights and prerogatives of Armagh by an angel. Some of these texts are in Old Irish and are the earliest surviving continuous prose narratives in that language. The only old Irish texts of greater age are fragmentary glosses found in manuscripts on the continent. • Muirchu, Vita sancti Patricii • Tírechán, Collectanea • notulae in Latin and Irish on St. Patrick's acts, and additamenta, charter-like documents later inserted into the manuscript • Liber Angeli ('The Book of the Angel') (640 x 670), written in Ferdomnach's hand • St. Patrick, Confessio in abbreviated form
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Partially resolvedreference work
Partially resolved
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Manuscripts
376 published records in this field, each with its sources named.
- Blue Qur'anManuscript
- Bobbio MissalManuscript
- Bobbio OrosiusManuscript
- Bodleian Library, MS Rawlinson B 512Manuscript
- Book of DimmaManuscript
- Book of DurrowManuscript
- Book of FortressesManuscript
- Book of HoursManuscript
Best supported in this field
For owners
Own a copy of Book of Armagh?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.