Show ContentsO'Brenand History, Family Crest & Coats of Arms

Many variations of the name O'Brenand 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.

Saint Brendan or Brenainn (490?-573), of Birr, "which was so called from the abundance of wells there (birr, birra, water), now Parsonstown, in the King's County. He was son of Neman, a poet, and Mansenna, and belonged to the race of Corb Aulam, great-grandson of Rudhraighe, from whom were the Clanna Rudhraighe. " 1

Another Saint Brendan or Brenainn (484-577), of Clonfert, was born in 484, at Littus li, or Stagnum li, now Tralee, co. Kerry. "He is termed son of Finnloga, to distinguish him from his contemporary, St. Brendan of Birr. " 1

Early Origins of the O'Brenand family

The surname O'Brenand 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 O'Brenand family

This web page shows only a small excerpt of our O'Brenand research. Another 124 words (9 lines of text) covering the years 1395, 1520, 1600, 1625, 1693, 1768, 1794, 1830 and 1832 are included under the topic Early O'Brenand History in all our PDF Extended History products and printed products wherever possible.

O'Brenand Spelling Variations

The Middle Ages saw a great number of spelling variations for surnames common to the Irish landscape. One reason for these variations is the fact that surnames were not rigidly fixed by this period. The following variations for the name O'Brenand were encountered in the archives: Brennan, McBrennan, Brannon, Brannan, Brannen, Brannin, Brennyn, Brannyn, MacBrennan, Brenan, Branon, Branan, Branen and many more.

Early Notables of the O'Brenand family

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'Brenand Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'Brenand family

In the 19th century, thousands of Irish left their English-occupied homeland for North America. Like most new world settlers, the Irish initially settled on the eastern shores of the continent but began to move westward with the promise of owning land. The height of this Irish migration came during the Great Potato Famine of the late 1840s. With apparently nothing to lose, Irish people left on ships bound for North America and Australia. Unfortunately a great many of these passengers lost their lives - the only thing many had left - to disease, starvation, and accidents during the long and dangerous journey. Those who did safely arrive in "the land of opportunities" were often used for the hard labor of building railroads, coal mines, bridges, and canals. The Irish were critical to the quick development of the infrastructure of the United States and Canada. Passenger and immigration lists indicate that members of the O'Brenand family came to North America quite early: 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.



  1. Smith, George (ed), Dictionary of National Biography. London: Smith, Elder & Co., 1885-1900. Print


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