Eochaid Sálbuide King of Ulster

https://en.wikipedia.org/wiki/Eochaid_S%C3%A1lbuide

Eochaid Sálbuide (Eochaid Yellow-heel) was king of Ulster prior to the events of the Ulster Cycle of Irish mythology. His daughter was Ness. He died at the Battle of Leitir Ruadh, fighting on the side of the High King of Ireland, Fachtna Fáthach, against Eochaid Feidlech, who defeated and deposed him as High King. He was succeeded as king of Ulster by Fergus mac Róich.

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Notes: HRM King Eochaid Sálbuide (Eochaid Yellow-heel) was King of Ulster prior to the events of the Ulster Cycle of Irish mythology. His daughter was HRH Princess Ness. He died at the Battle of Leitir Ruadh, fighting on the side of the High King of Ireland, HRM High King Fachtna Fáthach, against Eochaid Feidlech, who defeated and deposed him as High King. He was succeeded as King of Ulster by HRM King Fergus mac Róich. Source: http://www.wikipedia.org