The O'Neill Clan is one of the most prominent and historically significant families in Ireland, particularly associated with the province of Ulster. The clan traces its lineage back to Niall of the Nine Hostages, a legendary 5th-century king. The O'Neills played a crucial role in Irish history, especially during the Tudor conquest of Ireland and the subsequent conflicts. The clan's influence extended beyond politics and warfare; they were also patrons of the arts and culture. The O'Neill family produced several notable leaders, including Hugh O'Neill, who led the resistance against English rule in the late 16th century. Today, the O'Neill name remains significant in Irish heritage and identity.