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Celtic harp and Irish song from Moya Brennan Photo by: Google Images

The Brennan Clan

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Celtic harp and Irish song from Moya Brennan Photo by: Google Images

Irish Derivation - Derived from two Irish surnames, O’Braondin and Mac Branain. Other variations of the name include McBrennan, Brannon, Brannen, Brennyn, Brenan.

Name Meaning-
from “O Braondin” from the Irish word “braon” which can be translated as “sorrow.” The name may also be derived from the word “bran” meaning raven. This may refer to someone with black hair.

Counties associated with the name- Kilkenny, Galway, Kerry

Coat of arms motto- “sub hoc signo vinces” which translates “under this sign you will conquer”

Interesting Facts-
The first clan gathering was held in 1990 at Castlecomer in Ireland and hundreds of Brennans participated. The renowned Brennan Restaurants in New Orleans feature Irish cuisine.

Famous Brennans - 

Moya Brennan- Irish musician

John Brennan- Obama’s Chief counterterrorism advisor in Dublin

Loretta Brennan Glucksman- philanthropist and member of the Irish America Hall of Fame

General Information

The name dates back to Braonan, son of Cearbhall, who was a Viking King of Dublin. He settled the area north of Kilkenny. The Braonans were the most powerful clan in the area until the Norman Invasion in the 12th century. The O’Braonan lands were granted to Christopher Wandesforde in the 17th century. The O’Brennans continued to stay on the land illegally and participated in the 1641 rebellion, which was unsuccessful. Several members of the clan became robbers and bandits. Many members remained on their ancestral lands as tenents. When Ireland was beginning to be Anglicized in the middle of the century, the O’Brennans became the Brennans. Many Brennans migrated to the United States during the nineteenth century. Many of them moved to Massachusetts, Pennsylvania, and New Jersey.

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