Eugein I was a ruler of

Alt Clut Dumbarton Castle ( gd, Dùn Breatainn, ; ) has the longest recorded history of any stronghold in Scotland. It sits on a volcanic plug of basalt known as Dumbarton Rock which is high and overlooks the Scottish town of Dumbarton. History Dumba ...

, the

Brittonic Brittonic or Brythonic may refer to: *Common Brittonic, or Brythonic, the Celtic language anciently spoken in Great Britain *Brittonic languages, a branch of the Celtic languages descended from Common Brittonic *Britons (Celtic people) The Br ...

kingdom later known as Strathclyde, sometime in the mid-7th century. According to the

Harleian genealogies __NOTOC__ The Harleian genealogies are a collection of Old Welsh genealogies preserved in British Library, Harley MS 3859. Part of the Harleian Library, the manuscript, which also contains the ''Annales Cambriae'' (Recension A) and a version of ...

, he was the son of Beli I, presumably his predecessor as king, and the father of

Elfin Elfin may refer to: * ELFIN, a CubeSat developed by University of California, Los Angeles * Elfin (steamboat), a steamboat that ran on Lake Washington from 1891 to 1900 * Elfin of Alt Clut, ruler of Alt Clut, seventh century Scotland *Elfin, a cha ...

, who ruled sometime later.MacQuarrie, p. 9. The '' Annals of Ulster'' and the ''

Annals of Tigernach The ''Annals of Tigernach'' (abbr. AT, ga, Annála Tiarnaigh) are chronicles probably originating in Clonmacnoise, Ireland. The language is a mixture of Latin and Old and Middle Irish. Many of the pre-historic entries come from the 12th-centur ...

'' record another probable son, '' Dumnagual'', who ruled Alt Clut and died in 694.MacQuarrie, p. 10. Eugein was probably the brother or half brother of Bridei III of the Picts, the victor at the

Battle of Dun Nechtain The Battle of Dun Nechtain or Battle of Nechtansmere ( Scottish Gaelic: ''Blàr Dhùn Neachdain'', Old Irish: ''Dún Nechtain'', Old Welsh: ''Gueith Linn Garan'', Modern Welsh: ''Gwaith Llyn Garan'', Old English: ''Nechtans mere'') was fough ...

. The '' Annals of Ulster'' record that a ''Hoan'' or ''Oan'', King of the Britons, defeated and killed Domnall Brecc of

Dál Riata Dál Riata or Dál Riada (also Dalriada) () was a Gaelic kingdom that encompassed the western seaboard of Scotland and north-eastern Ireland, on each side of the North Channel. At its height in the 6th and 7th centuries, it covered what is n ...

at a place called ''Srath Caruin'' ( Strathcarron) in 642. A stanza interpolated in the poem ''

Y Gododdin ''Y Gododdin'' () is a medieval Welsh poem consisting of a series of elegies to the men of the Brittonic kingdom of Gododdin and its allies who, according to the conventional interpretation, died fighting the Angles of Deira and Bernicia a ...

'', often known as the "Strathcarron interpolation" or simply ''The Battle of Strathcarron'', refers to these events, indicating that the forces of "Nwython's grandson" (i.e., Eugein, the grandson of

Neithon of Alt Clut Neithon (died c. 621) was a 7th-century ruler of Alt Clut, the Brittonic kingdom later known as Strathclyde. According to the Harleian genealogies, he was the son of Guipno map Dumnagual Hen. Alfred Smyth suggests he is the same man as King Nech ...

) triumphed over "Dyfnwal Frych" (Domnall Brecc), the ruler of "Pentir" (

Kintyre Kintyre ( gd, Cinn Tìre, ) is a peninsula in western Scotland, in the southwest of Argyll and Bute. The peninsula stretches about , from the Mull of Kintyre in the south to East and West Loch Tarbert in the north. The region immediately nor ...

, or Dál Riata). Eugein's date of death is unknown, but he was certainly dead by 658, when another king of Alt Clut, Guret, has his death recorded by the ''Annals of Ulster''.''Annals of Ulster'', 658
This Guret does not appear in the genealogies; he may have been a brother or son of Eugein.

Notes

References

* * * {{DEFAULTSORT:Eugein 01 Of Alt Clut 7th-century Scottish monarchs Monarchs of Strathclyde