The O'Hagans as Brehons
For over six hundred years, the O'Hagans served as hereditary brehons (judges and law-givers) to the O'Neill clan in Ulster. Their role was central to the administration of justice and the preservation of Gaelic legal traditions.
What Were Brehons?
Brehons (from the Irish "breitheamh," pronounced [ˈbʲɾʲɛhəw]) were judges and arbitrators in ancient Irish society who administered Brehon Law. They were not simply judges in the modern sense, but guardians and interpreters of a complex legal tradition that had evolved over centuries.
Unlike modern judges, brehons did not have the power to enforce their judgments through physical coercion. Instead, their authority rested on their knowledge of the law and the respect accorded to them by the community. Compliance with their judgments was ensured through social pressure and the threat of losing honor and status.
The position of brehon was typically hereditary, passed down through certain families who specialized in legal knowledge. The O'Hagans were one of the most prominent of these legal families, serving as Chief Brehons to the powerful O'Neill clan.
The O'Hagans' Specific Role
The O'Hagans held several important positions and responsibilities that set them apart from other brehon families:
Chief Brehons to the Cinel Eoghain
They were the primary legal authorities for this powerful clan in Ulster, responsible for interpreting and applying the law in all disputes involving clan members.
Lords of Tullyhogue
They held the title and lands at Tullyhogue in County Tyrone, in the Barony of Dungannon (Upper), parish of Desertcreat, which served as their seat of power.
Inaugurators of O'Neill Kings
Perhaps their most prestigious role was as inaugurators of the O'Neill kings. This ceremonial function gave them significant political influence and symbolic authority.
Hereditary Seneschal
With the rise of the medieval O'Neill dynasty, the O'Hagan chief became hereditary seneschal (reachtaire) and the senior of O'Neill's household families.
The earliest recorded O'Hagan in historical annals was Magrath O'Hagan, Lord of Cinel Fergus, whose death in 1081 was documented in the Annals of the Four Masters. Another early reference appears in July 1122 AD, when "Donnsleibhe Ua hOgain, chief of Cinel-Fearghusa, and lawgiver of Tealach-Og, died."
Notable O'Hagan Brehons
Magrath O'Hagan
Recorded in the Annals of the Four Masters as "Lord of Cinel Fergus" who was slain in 1081. As a lord of this territory, he would have been involved in the administration of Brehon law.
Donnsleibhe Ua hOgain
Mentioned in historical records as "chief of Cinel-Fearghusa, and lawgiver of Tealach-Og (Tullyhogue)" who died in July 1122 AD. This is one of the earliest specific references to an O'Hagan serving in a judicial capacity.
The O'Hagan Chief at Hugh O'Neill's Inauguration
While not named individually, historical records indicate that the chief of the O'Hagan clan had the hereditary right to inaugurate the O'Neill kings, serving as the "reachtaire" (seneschal) and the senior of O'Neill's household families. This role included presenting and reading the law at O'Neill's inauguration in 1595, the last Gaelic inauguration of a chief in Ireland.
Archaeological Evidence
Archaeological investigations at Tullyhogue Fort have revealed significant evidence of the O'Hagan brehons' presence and role:
The Grand Hall
Excavations in 2015 uncovered the foundations of a Grand Hall dating to the late 15th-early 16th century. This structure, measuring approximately 12x6m with a central fire hearth, would have been where the chief O'Hagan conducted official business, including legal proceedings.
The Leac na Rí
The stone of kingship or Leac na Rí was located near the base of the hill. This inauguration stone had been turned into a rough outdoor throne by the Tudor era with the addition of three flat stone slabs for a back and two arm rests.
Contemporary Maps
Richard Barthelet's map (c. 1602) provides valuable visual documentation of Tullyhogue as it appeared at the end of the Gaelic order, showing the layout of the fort and the O'Hagan settlement.