Oirialla

Oirialla is an Irish term that can refer to a number of related concepts, primarily historical and geographical. Most commonly, it denotes a Gaelic kingdom located in the eastern part of the province of Ulster in what is now Ireland. This kingdom was founded by Eoghan Bel in the 4th century and was a significant political entity for centuries. Its territory encompassed parts of modern-day counties Monaghan, Armagh, and Louth. The ruling dynasty of Oirialla was known as the Uí Ch Remain.

The name Oirialla itself is thought to derive from "Óg Rígh" meaning "young king" or "youthful kings," possibly referencing a tradition of young rulers or a subordinate status. Over time, the influence and borders of Oirialla shifted due to inter-kingdom rivalries and later, Norman incursions.

In a broader sense, Oirialla can also refer to the cultural region encompassing the former kingdom's territory. This region is characterized by its historical significance, ancient monastic sites, and distinct dialect of the Irish language that persisted in certain areas. Today, the historical legacy of Oirialla continues to be studied and preserved by historians and archaeologists.