Eochaid or Eochu Étgudach ("possessing clothes") or Etgedach ("negligent"?) son of Dáire Doimthech

Dáire Doimthech

Dáire Doimthech, alias Dáire Sírchréchtach, son of Sithbolg, was a legendary King of Tara and High King of Ireland, and eponymous ancestor of the proto-historical Dáirine and historical Corcu Loígde of Munster. A son of his was Lugaid Loígde , an ancestor of Lugaid Mac Con...

, a descendant of Lugaid mac Ítha, nephew of Míl Espáine

Míl Espáine

In Irish origin legends, Míl Espáine or Míl Espáne is the ancestor of the final inhabitants of Ireland, the "sons of Míl" or Milesians, who represent the vast majority of the Irish Gaels....

, was, according to medieval Irish legend and historical tradition, a High King of Ireland

High King of Ireland

The High Kings of Ireland were sometimes historical and sometimes legendary figures who had, or who are claimed to have had, lordship over the whole of Ireland. Medieval and early modern Irish literature portrays an almost unbroken sequence of High Kings, ruling from Tara over a hierarchy of...

. According to the Lebor Gabála Érenn

Lebor Gabála Érenn

Lebor Gabála Érenn is the Middle Irish title of a loose collection of poems and prose narratives recounting the mythical origins and history of the Irish from the creation of the world down to the Middle Ages...

he was chosen as king by the remaining quarter of the men of Ireland after the other three-quarters had died with the former king, Tigernmas

Tigernmas

Tigernmas, son of Follach, son of Ethriel, a descendant of Érimón, was, according to medieval Irish legend and historical traditions, an early High King of Ireland...

, while worshipping the deity Crom Cruach

Crom Cruach

Crom Cruach or Cromm Crúaich , also known as Cenn Cruach /ˈkʲɛnˠ: ˈkɾˠuəxˠ/ or Cenncroithi /ˈkʲɛnˠ: ˈkɾˠoθʲɨ/, was a deity in pre-Christian Ireland, reputedly propitiated with human sacrifice, whose worship is said to have been ended by St...

. He introduced a system whereby the number of colours a man could wear in his clothes depended on his social rank, from one colour for a slave to seven for a king or queen. He ruled for four years, until he was killed in battle at Tara

Hill of Tara

The Hill of Tara , located near the River Boyne, is an archaeological complex that runs between Navan and Dunshaughlin in County Meath, Leinster, Ireland...

 by Cermna Finn, who succeeded to the throne jointly with his brother Sobairce. His reign is synchronised with that of Eupales in Assyria

Assyria

Assyria was a Semitic Akkadian kingdom, extant as a nation state from the mid–23rd century BC to 608 BC centred on the Upper Tigris river, in northern Mesopotamia , that came to rule regional empires a number of times through history. It was named for its original capital, the ancient city of Assur...

. The chronology of Geoffrey Keating

Geoffrey Keating

Seathrún Céitinn, known in English as Geoffrey Keating, was a 17th century Irish Roman Catholic priest, poet and historian. He was born in County Tipperary c. 1569, and died c. 1644...

's Foras Feasa ar Éirinn dates his reign to 1159-1155 BC, that of the Annals of the Four Masters

Annals of the Four Masters

The Annals of the Kingdom of Ireland or the Annals of the Four Masters are a chronicle of medieval Irish history...

(which adds that there was a seven year interregnum

Interregnum

An interregnum is a period of discontinuity or "gap" in a government, organization, or social order...

 between Tigernmas' death and Eochaid's accession) to 1537-1533 BC.

As a son of the legendary 1st or 2nd century AD Dáire Doimthech, Eochaid Étgudach appears to have been misplaced chronologically by later medieval synchronists.