O'Cahan (Irish: Ó Catháin) is the name of a significant clan in Ulster, a province of Ireland. It has been angiclized to O'Kane and Kane. They are descended from Eogan, son of Niall of the Nine Hostages. In the late Middle Ages, they were the primary sept under the O'Neill Clan of Ulster, holding the privilege of inaugurating the Chief of the O'Neill by tossing a shoe over the new Chief's head in acceptance of his rule. They were Barons of Keenacht and Coleraine in Ulster under the O'Neill, ruling from Dungiven Castle in Limavady. Statistics Area: 24,481 km² Population (2006 estimate) 1,993,918 Ulster (Irish: Cúige Uladh, IPA: ) forms one of the four traditional provinces of Ireland. ... Eogan, son of Niall Noígiallach, was an Irish king founded the kingdom of Tír Eógan (modern County Tyrone) in the 5th century. ... Niall of the Nine Hostages (Irish: Niall Noigíallach) was a High King of Ireland who was active in the early-to-mid 5th century, dying - according to the latest estimates - around 450-455. ... The Middle Ages formed the middle period in a traditional schematic division of European history into three ages: the classical civilization of Antiquity, the Middle Ages, and modern times, beginning with the Renaissance. ... The ancient arms of Ua Néill ONeill (also spelled ONeil, ONeal) is a common surname of Irish origin. ... Statistics Area: 24,481 km² Population (2006 estimate) 1,993,918 Ulster (Irish: Cúige Uladh, IPA: ) forms one of the four traditional provinces of Ireland. ... The ancient arms of Ua Néill ONeill (also spelled ONeil, ONeal) is a common surname of Irish origin. ... WGS-84 (GPS) Coordinates: 55. ... The ancient arms of Ua Néill ONeill (also spelled ONeil, ONeal) is a common surname of Irish origin. ... WGS-84 (GPS) Coordinates: 55. ...

There is still a lot of historical evidence of the clan's ancient Ulster roots. These include Dungiven Priory which is reputed to be the tomb of Cooey-na-Gal O'Cahan, who died in 1385. 'Cooey-na-Gal' means "Terror of the Stranger", so the fact that he is lying here rather than stalking the valley is a great relief to the average tourist. Dungiven (Irish: Dún Geimhín; meaning Givens fort) is a large village in County Londonderry, Northern Ireland, on the main Belfast to Derry road. ... Events August 14 - Battle of Aljubarrota between the Portuguese under John I of Portugal and the Castilians, under John I of Castile. ...

Turlough O'Cahan owned Dunseverick castle in medieval times, after participating in the First Crusade. Dunseverick was a 'key' ancient site in Ireland and one of the royal roads from Tara, seat of the Kings of Ireland, ended here. Dunseverick was a key ancient site in Ireland and one of the royal roads from Tara, seat of the Kings of Ireland ended here. ... Combatants Christendom, Catholicism West European Christians, Armenian Kingdom of Cilicia Seljuks, Arabs and other Muslims The First Crusade was launched in 1095 by Pope Urban II with the dual goals of liberating the sacred city of Jerusalem and the Holy Land from Muslims and freeing the Eastern Christians from Muslim... Dunseverick was a key ancient site in Ireland and one of the royal roads from Tara, seat of the Kings of Ireland ended here. ... The Hill of Tara, located near the River Boyne, is today a mound in County Meath, Leinster, Ireland, on which the grass has veiled the rich heritage of the country. ...

Legend has it that Rory Dall O'Cahan, an Irish harpist of the 17th century, penned the popular Irish tune "The Derry Air" or, "Londonderry Air", in order to lament the destruction of the O' Cahan Clan. Consequently, the lament may have been originally called "O'Cahan's Lament". Words were later added and it is now known as "Danny Boy". The Londonderry Air is an anthem of Northern Ireland. ... Danny Boy is a love song from a woman to a man, providing one of many lyrics set to the Irish tune Derry Air. ...

The O'Cahan Clan's long battle with the English crown ended in the early 1600s. With that defeat, its lands were contributed to the Derry plantation, during the Plantation of Ulster, as the County Coleraine, and now form the bulk of today's County Londonderry. After the Flight of the Earls in 1607, Sir Donnell Ballagh O'Cahan, Chief of the O'Cahan (and at one time knighted by the English Crown), was captured and sent to the Tower of London, where he died in 1626. There has been no Chief since. The Plantation of Ulster was a planned process of colonisation which took place in the northern Irish province of Ulster during the early 17th century in the reign of James I of England. ... The County of Coleraine, also known as County Coleraine, was a county of Ireland. ... Statistics Province: Ulster County Town: Derry Area: 2,074 km² Population (est. ... In September 1607, Hugh ONeill, 2nd Earl of Tyrone and Rory ODonnell, 1st Earl of Tyrconnell set sail from Rathmullan, a village on the shore of Lough Swilly in County Donegal, with ninety of their followers. ...