Within the ancient lands of north Munster and central Connacht provinces in Ireland - is found the ancestral history of the Family Clann (Sept) now known as - Hannon/Hannan - originally called by the Irish surname - Ó hAnnáin.

We are an Irish Clann whose celtic tribal origins in the Emerald Isle date back 2,500 years to a time before surnames became common in Ireland. Ireland was to be the first country in Europe to create and use family surnames.

We were part of the ruling Érainn tribal Celts of Ireland, who gave their name to the words - "Éire", "Erin", "Ireland" and "Hibernia". From Co. Antrim south to Co. Cork, the Érainn tribes ruled the Emerald Isle long before the later Laginian and goidelic speaking Gaelic Celts had arrived.

In time, our ancestors inter-married with the celtic Gaels - the tribal group who eventually came to rule all of the Emerald Isle. The Gaels had emigrated to Ireland from Galicia, in northwest Spain c.50 BC.

Heber, son of Gollamh (a.k.a. Milesius to the Romans), had a descendent that ruled after him named Mugh Nuadhat - also known as Eoghan Mor who married a Galician Irish princess named, Beara; who in turn gave birth to Munster's First King - Allioll Olum.

King Allioll Olum, married Sabia the daughter of the then reigning High King of Ireland - Conn Cétchathach (Conn of the Hundred Battles) of Connacht. Both King Alliol Olum and Queen Sabia helped give birth to...Cormac Cas. When King Alliol Olum died in 234 AD, Cormac Cas became King of Munster - and ruled till he died in the year 254 AD.

On Good Friday in the year 1014 AD, the Ó hAnnáin clann joined with their fellow Irish at the Battle of Clontarf - lining up alongside the High King Brian Boru. Together the Irish clanns from Munster and Connacht provinces, fought and won the day - freeing Ireland from the invading Danish Vikings .