Ó hAonghusa

Ó hAonghusa is the surname of at least two distinct Gaelic-Irish families. It is now anglicised as Hennessy and Hennessey.

One Ó hAonghusa family were located at Cill Bheagáin, in the Kingdom of Uí Failghe, in the Irish midlands.

Another family surnamed Ó hAonghusa were found at Ros Ailithir, in the Kingdom of Desmond. It is from this family that the founder of Hennessy brandy, Richard Hennessy of Killavulen, by Mallow, and Cognac (1720–1800), descended. Richard's descendants, Maurice Hennessy and his cousin Kilian Hennessy (1907–2010), were business magnates and patriarchs of the Hennessy cognac company.

According to historian C. Thomas Cairney, the O'Hennessys were one of the chiefly families of the Corca Laoghdne tribe who in turn came from the Erainn tribe who were the second wave of Celts to settle in Ireland from 500 to 100 BC. The same historian stated that another group of O'Hennessys were one of the chiefly families of the Ui Failghe who in turn were from the Dumnonii or Laigin were the third wave of Celts to settle in Ireland during the first century BC.

See also

• Hennessey (surname)
• Hennessy (surname)
• Baron Windleshame
• Pre-Norman invasion Irish Celtic kinship groups, from who many of the modern Irish surnames came from

References

• "Irish Ancestors/ Surnames". irishtimes.com. Retrieved 16 January 2014.
• "Irish Family Names - Hennessy". irelandseye.com. Retrieved 16 January 2014.
• "Hennessy Coat of Arms / Hennessy Family Crest". 4crests.com. Retrieved 16 January 2014.

1. Aongus Ó hAonghusa
2. Richard Hennessy
3. Hennessey (surname)
4. Ó Brolaigh
5. Hennessy (surname)
6. Angus (given name)
7. Gearóid Ó Cuinneagáin
8. Proinsias Mac Aonghusa
9. Pádraig Ó Snodaigh
10. National Library of Ireland
11. Lower Philipstown
12. Matthew Hennessy
13. Gailenga
14. Warrenstown
15. Mícheál Ó Muircheartaigh
16. George Hennessy, 1st Baron Windlesham
17. Kevin Hennessy
18. Máirtín Ó Cadhain
19. 2014–15 Harty Cup
20. Brendan Hennessy