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Republic of Ireland
In Ireland, the name Gleason is found throughout the province of Munster and is derived from the original surname Glaisine, pronounced "GLASH-inn-eh." The Fragmentary Annals of Ireland, written by Christian monks in the early half of the 11th century, records the Chieftains's death in 906 AD - at the height of the Viking Age.
"AD 906 The death of Glaisine son of Uisine, King of Ui Meic-Caille."

Original Irish source
FA 420
3rd line from top


English translation
last line at bottom
Also celebrated by the 15th century bard O'Heerin, Glaisine is described as a Chieftain of "Ui Meic-Caille" who co-ruled the barony of Imokilly, which is located on the eastern seacoast (see quick surf check below) of County Cork near the modern day town of Youghal (pronounced "Yall.")

"A valiant clan, warlike in pursuit,
Ruled Imokilly of the hospitable banquets
two tribes possessed the smooth plains
O'Bregan and the fair O'Glasin."

Original Irish source:
The Topographical Poems of John O'Dubhagain and Giolla na naomh O'Huidhrin (O'Heerin) by John More O'Dugan.

English source (4th paragraph):
Foras Feasa ar eirinn by Seathrun Ceitinn a.k.a. "The History of Ireland by Geoffrey Keating."


So what does the name mean?

Glas is a nickname found with a variety of meanings, including green, grey, or pale.
O'Bregan (cited in the sources above) comes from "Breoghan," considered the root of the common surname Brown.
The last name (i.e. the surname) "Gleeson" is a derivation of the original Glaisine surname


Where exactly was Glaisne's Kingdom?
map from AD 1111









A glimpse into times back then...

"Bitter is the wind tonight. It tosses the oceans white hair.
Tonight I fear not the fierce warriors of Norway. Coursing on the Irish sea."

Poem from "The Irish Priscian manuscript of St. Gallen" 850 AD
Picture from the illuminated manuscript "Miscellany on the Life of St. Edmund" 1130 AD


"Drawn After The Quick" - anonymous woodcut 15th century


From the Codice De Trajes manuscript 1547 AD


"The Meeting of the Earl of Gloucester and Art MacMurrough", 1399


"MacSweyne Dines as the Bard Recites" - John Derricke, 1581


"Irish as they stand accoutred being at the service of the late King Henry"
Lucas d'Heere, circa 1575


16th century dress (left) and 9th century dress (right)


Ballyglasheen Castle

Translated from Irish to English, Ballyglasheen means Gleason Town. Ballyglasheen castle is located at latitude 52.378532, longitude -7.59181 in the town of Ballyglasheen Cross, which is 29 kilometers east from Ballyglasheen, Caherabbey Lower. There are a number of other Ballyglasheen towns in County Tipperary, a.k.a. "Baile Ui Ghlaisin."


The castle is protected with a very fine machicolation, or "Murder Hole"

The Gleason Coat of Arms features sable (black) on bend argent (silver) and three mullets (five-pointed stars) gules (red.)


*** quick surf check ***




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