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Brennon History, Family Crest & Coats of Arms



Many variations of the name Brennon have evolved since the time of its initial creation. In Gaelic it appeared as "O Braondin," from the word "braon," which has several meanings, possibly meaning "sorrow" in this case.

Early Origins of the Brennon family


The surname Brennon was first found in County Kilkenny (Irish: Cill Chainnigh), the former Kingdom of Osraige (Ossory), located in Southeastern Ireland in the province of Leinster, where the family claim descent from Braonan, an Irish Prince, brother of Ceallach, 17th King of Ossory. Braonan later became the King of Ossory, and also King of the Danes of Dublin, and was known as the Prince of Idough. His son, Conglach, in a dispute over the throne of Ossory, was killed near Three Castles, County Kilkenny. At this point in time the Brennans were in conflict with Brian Boru (1014), and most historians believe that the family was on the wrong side as allies of the Danish King. After Clontarf, they retained only the principality of Idough, but Anne, daughter of Guidhelgedh, three generations later, married the King of Ossory (Donogh), and the title was still extant even after the Anglo Norman invasion of 1172.

Early History of the Brennon family


This web page shows only a small excerpt of our Brennon research.
Another 247 words (18 lines of text) covering the years 1395, 1520, 1600, 1832, 1625, 1693, 1768, 1830 and 1794 are included under the topic Early Brennon History in all our PDF Extended History products and printed products wherever possible.

Brennon Spelling Variations


Names from the Middle Ages demonstrate many spelling variations. This is because the recording scribe or church official often decided as to how a person's name was spelt and in what language. Research into the name Brennon revealed many variations, including Brennan, McBrennan, Brannon, Brannan, Brannen, Brannin, Brennyn, Brannyn, MacBrennan, Brenan, Branon, Branan, Branen and many more.

Early Notables of the Brennon family (pre 1700)


Notable among the family name at this time was Sir Art O'Brennan of Castlecomer Castle; Most Rev. John Brennan (1625-1693), Bishop of Waterford and Archbishop of Cashel; John Brennan (1768-1830)...
Another 29 words (2 lines of text) are included under the topic Early Brennon Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Brennon family to the New World and Oceana


Some of the first settlers of this family name were:

Brennon Settlers in New Zealand in the 19th Century

  • Edmund Brennon, aged 26, a farm labourer, who arrived in Wellington, New Zealand aboard the ship "Hudson" in 1879

Brennon Family Crest Products



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