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Tegid ab Iago (abt. 0270)

Tegid "Tacitus" ab Iago
Born about in Scotlandmap
Ancestors ancestors
Son of and [mother unknown]
[sibling(s) unknown]
[spouse(s) unknown]
Descendants descendants
Died [date unknown] in Walesmap
Profile last modified | Created 29 Sep 2015
This page has been accessed 729 times.
The Birth Date is a rough estimate. See the text for details.




The Venicones were a Celtic tribe inhabiting the area now known as Fife in Scotland. "Unfortunately for the Venicones, they occupied the very region that the Romans needed to invade several times in order to quell attacks by Britons (Picts) in the east of the Highlands, including attacks by the 'Pictish navy." Fleeing the Roman advances by sea, some of the Venicones may have resettled in Donetal, Ireland, and Gwynedd, Wales. [1]

A legionary fortress was built at Inchtuthill, Tayside (Pinnata Castra), which remained occupied during the late first century by the Twentieth Legion Valeria.[2]

Birth and Parents

Tacitus ap Cein, "Tegid", son of (Gwr-)Cein ap Doli, flourished about the year 270. ref name="venicones"/>

Wolcott observes that review of the most ancient manuscripts suggests the omission of some generations, and Tegis is actually the son of Iago. [3]


Tacitus "Tegid" was the father of his son, Paternus Pasrut (of the Red Robe) who flourished about 305. [1]

Williams adds that Tegid ab Iago is named the father of Padarn Beisrudd in the biographical dictionary Enwogion Cymru.[4]

Padarn (Beisrudd) is said to have been a hermit and bishop. "Pais Padarn Beisrudd" or the coat of Padarn with the crimson coat, was onew of the thirteen beautiful specimens of workmanship of the Isle of Britain. (See Jones's Bardic Museum, 48) [4]

Research Notes

Harleian Manuscript

Harleian MS 3859 names Patn pefrut, child of Tacit, child of Cein; material from Jesus College MS 20 and Hengwrt MS 33 indicate that there are two more generations, Iago and Gwyndog, between Tacit/Tegid and Cein.[3]

(O)uen map (H)iguel map Catell map Rotri map Mermin map Etthil merch Cinnan map Rotri map Iutguaul map Catgualart map Catgollaun map Catman map Iacob map Beli map Run map Mailcun map Catgolaun Iauhir map Eniaun girt map Cuneda map Ætern map Patern Pesrut map Tacit map Cein map Guorcein map Doli map Guordoli map Dumn map Gurdumn map Amguoloyt map Anguerit map Oumun map Dubun map Brithguein map Eugein map Aballac map Amalach, qui fuit Beli Magni filius et Anna mater eius quam dicunt esse consobrina Mariæ Uirginis Matris d’ni n’ri ih’u xp’i.[5]

Pedigree of Pughe

Tegid appears in a pedigree of Pughe, of Mathavarn, in Cyveilog, reaching back to biblical Adam, presented by Lewys Dwnn. The pedigree illustrates the fondness of the Welsh for pedigrees as well as the difficulty of determining at what point the pedigree moves from history to legend. [6]

The pedigree of Pughe also appears in a work by the Powys-land Club.[7]

The complete pedigree is presented and discussed at Space: John Pughe's Descent from Adam

According to Darrell Wolcott [3]he should be Tegid ab Iago rather than ap Cein.


  1. 1.0 1.1 The History Files. Celtic Kingdoms of the British Isles." Venicones Accessed 14 Jan 2022 jhd
  2. Information by Edward Dawson, and additional information from The La Tene Celtic Belgae Tribes in England: Y-Chromosome Haplogroup R-U152 - Hypothesis C, David K. Faux, Celtic Kingdoms of the British Isles: Celts of Britain: Venicones, added 2014-08-01, amb
  3. 3.0 3.1 3.2 Darrell Wolcott (ed). Ancient Wales Studies. Harleian MS 3859, accessed 5 Apr 2021
  4. 4.0 4.1 Robert Williams. Enwogion Cymru: A Biographical Dictionary of Eminent Welshmen, from the Earliest Times to the Present, and Including Every Name Connected with the Ancient History of Wales, page 388. William Rees, London, 1852. Accessed 5 Apr 2021
  5. Harleian genealogies 1: Gwynedd part 1, amb
  6. Lewys Dwnn. "Montgomeryshire Pedigrees: Heraldic Visitations of Wales and part of the Marches Pughe, of Mathavarn, in Cyveilog, to Adam page 205. Accessed 25 March 2020 jhd
  7. John Rhydderch. Pedigreees of Montgomeryshire Families selected about the year 1711-12 from Lewis Dwnn's Original Visitation. London: Powysland Club, 1888. [ The Pedigree of Pughe of Mathavarn, in Cyveilog, to Adam. Pages 68-74. Accessed 27 March 2020 jhd

See also:

  • Source S-2024265470: Title: Royal Line, The: Author: Albert F Schmuhl: Publication: Orig. March, 1929 NYC, NY - Rev. March 1980: Note: Good: Genealogical lineages may not always be from father to son, especially Houses of Kings: Source Media Type: Manuscript

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Comments: 8

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I see he was a King of Northern Britain and another site says of Wales? Do we know which nation he held as King?

Tegid Tacitus ap Iago is your 47th great grandfather. You → Alvin Dean Meredith, Sr. your father → Charlotta Meredith (Mangus) his mother → Mabel Floretta Miller her mother → Matilda Louisa Woodruff her mother → Samuel Woodruff her father → Israel Woodruff his father → Sarah Woodruff his mother → Sarah Woodruff her mother → Samuel "Sergeant" Judd her father → Mary Judd his mother → Rachel Steele her mother → Anne Talcott her mother → William Skinner her father → John Skinner, MP his father → John Skinner, IV his father → Jane Skinner his mother → Ann Gaynsford her mother → Rose Trevor her mother → Angharad Puleston her mother → Sir Robert Puleston her father → Sir Richard de Puleston his father → Margred verch Llewelyn his mother → Llewelyn ap Ynyr her father → Ynyr ap Hywel his father → Hywel ap Moreiddig his father → Moreiddig ap Sandde Hardd his father → Sandde Hardd ap Sandde, of Mortyn his father → Sandde ap Caradog Hardd his father → Caradog Hardd ap Gwrydr his father → Gwrydr ap Maelog Dda his father → Maelog Dda ap Greddyf his father → Greddyf ap Cwnws Ddu his father → Cwnws "Ddû" ap Cillin his father → Cyllyn "Ynfyd" ap Peredur Teirnoe his father → Peredur Teirnoe ap Meilir his father → Meilir eryr gwyr gorsedd ap Tydy his father → Tydy ap Tyfodedd his father → Tyfodedd ap Gwilfyw his father → Gwylfyw ap Marchwyn his father → Marchwyn ap Bran his father → Brân ap Pwyll his father → Pwyll ap Cynyr his father → Cynyr ap Meilir his father → Meilir ap Gwron, Brenin Meilirion his father → Gwron (Edern) ap Cunedda his father → Cunedda Wledig, King of Gwynedd his father → Edern Aeturnus ap Padarn his father → Padarn of the Scarlet Robe, Commander of the Votadini his father → Tegid Tacitus ap Iago his father

posted on Ap Iago-14 (merged) by A. J. Meredith
As discussed in the biography, the Venicones may have been driven out of northern Britain and taken root in Gwynedd. Thus it is possible that Tegid was in both areas.
posted by Jack Day
Ap Cein-3 and Ap Iago-14 appear to represent the same person because: Another stray Tegid, same reasoning as for Cain-1. This one wasn't even connected to Cein as a father. Should be merged into ap Iago.
posted on Ap Iago-14 (merged) by Rakelle (Østenstad) Teschner
Cein-1 and Ap Iago-14 appear to represent the same person because: Note that both profiles have the same son, and the same death date. The bio text in the Cein profile lists a birth date estimate of 270 even though it's been set to 314 in the biography. The only actual disagreement is the parentage, and only Harleian points at Cein (it seems to have dropped two generations and added three incorrect ones) while two other sets of documents indicate Iago.
posted on Ap Iago-14 (merged) by Rakelle (Østenstad) Teschner
Cein-1 and Ap Iago-14 do not represent the same person because: Different names, relatives, places and dates.
posted on Ap Iago-14 (merged) by Jack Day
This is the tail end of the tangled mess I have emailed you about
posted on Ap Iago-14 (merged) by Rakelle (Østenstad) Teschner
Cein-1 and Ap Iago-14 appear to represent the same person because: Reasonably clear duplicates. Cein is his father in the Harleian Manuscripts (which also introduced a slew of nonexistant generations due to misreading an older text) while Iago is indicated as his father in Jesus College MS 20 and Hengwrt MS 33. Should be merged into ap Iago.
posted on Ap Iago-14 (merged) by Rakelle (Østenstad) Teschner
Through merges or whatever, the parents of Tacitus, Verch Genedawc-1 and Aberffraw-2, are shown as being born in the 800s. I am disconnecting them.
posted on Cein-1 (merged) by Vic Watt

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Categories: Estimated Birth Date | Legendary Ancestry of Rhodri Mawr