Annals of The Four Masters: Edit Edit
Annals of The Four Masters: Edit Edit
Annals of The Four Masters: Edit Edit
Brussels, which states the name "Gallchubhair". [7] A similarly earlier mention occurs in the Annals of the Four
Masters, where it is recorded that Mael Cobo Úi Gallchobhar, abbot of Scrin Adamnain, died in 1022 AD.[8]
Gallchobhar was the one given the role of founding father of the clan at the advent of widespread surname
usage in Ireland, which began around the 10th century. [9]
As with the modern Irish surname Ó Conchúir, frequently anglicised as O'Conor, Ó Gallchóir similarly appears
to be a conjoined/compound word and shares in common with O'Connor, the same suffix. With O'Conner
likewise starting out in the original Irish as Conchobhar/Conchubhar (Con-chobhar meaning "lover of
canines"). The original Irish spelling, Ó Gallchobhar, draws from this same compound naming convention.
It is the most common surname in County Donegal (Dún na nGall means "fort of the foreigner"), and thus is
very common in Derry, and is the fourteenth-most-common by birth records in Ireland. In the United States,
it was ranked by the 2000 US Census as the 433rd-most-common name out of over 68,000 surnames found.[10]
According to Professor Edward MacLysaght, in the mid-20th century Gallagher was one of the most common
Irish surnames, most of the recorded births being located in the northern province, Ulster, and the western
province, Connacht, with the majority being recorded in the homeland of the sept—County Donegal in
Ulster.[11] In 1890 it was ranked the 12th-most-common surname in Ireland, while in 1996 it was 20th. [12]
Conall Gulban, son of Niall Noígiallach, founded the kingdom of Tír Chonaill (Tyrconnell) in the 5th century. It
comprises much of what is now County Donegal, and several surrounding areas. The following is a pruned
and truncated version of the Conall Gulban family tree with Conall Gulban's brothers Eógan, to Lóegaire, also
displayed. For clarity's sake the number of Conall Gulban's sons, grandsons and great-grandsons are not
listed. Gallchobar is descended from Mael Coba brother of Domnall mac Áedo.[13]
Genetic analysis of Gallagher Y chromosome haplogroups can trace back their origin to a single medieval, 5th-
century individual, lending credence to the legend of Niall Noígiallach.[1]
The prefix Mac means 'son of' and the now more popular Ua (later Ó') means 'grandson of, or, of the
generations of'.[14]