Many variations of the name O'Brannan 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 O'Brannan family
The surname O'Brannan 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
Early History of the O'Brannan family
This web page shows only a small excerpt of our O'Brannan 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 O'Brannan History in all our PDF Extended History products and printed products wherever possible.
O'Brannan Spelling Variations
Pronunciation, rather than spelling, guided scribes and church officials when recording names during the Middle Ages. This practice often resulted in one person's name being recorded under several different spellings. Numerous spelling variations
of the surname O'Brannan are preserved in these old documents. The various spellings of the name that were found include Brennan, McBrennan, Brannon, Brannan, Brannen, Brannin, Brennyn, Brannyn, MacBrennan, Brenan, Branon, Branan, Branen and many more.
Early Notables of the O'Brannan 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 O'Brannan Notables in all our PDF Extended History products and printed products wherever possible.
Migration of the O'Brannan family to the New World and Oceana
A massive amount of Ireland's native population left the island in the 19th century for North America and Australia
in hopes of finding more opportunities and an escape from discrimination and oppression. A great portion of these migrants arrived on the eastern shores of the North American continent. Although they were generally poor and destitute, and, therefore, again discriminated against, these Irish people were heartily welcomed for the hard labor involved in the construction of railroads, canals, roadways, and buildings. Many others were put to work in the newly established factories or agricultural projects that were so essential to the development of what would become two of the wealthiest nations in the world. The Great Potato Famine
during the late 1840s initiated the largest wave of Iris immigration. Early North American immigration and passenger lists have revealed a number of people bearing the name O'Brannan or a variant listed above: James Brennan, a bonded passenger, who arrived in Potomac in 1731;Timothy Branen who settled in Placentia, Newfoundland, in 1744; Laurence Brennan, on record as a laborer in St. John's Newfoundland in 1779.