The McCostelloe surname came to Ireland
with the Anglo- Norman invasion
of the 12th century. They were originally from the Norman family Nangles, or de Angulos, and descended in Ireland
from Gilbert de Nangle. Costello and associated variations come from the personal name
of a son of Gilbert, Oisdealbhach, whose name consists of the elements "os," which means "deer or fawn", and "dealbhadh," which means "in the form of" or "resembling." The Gaelic form of the surname McCostelloe, which predated the Anglicized version of the name, is Mac Oisdealbhaigh. This is the earliest recorded example of a Norman family assuming a Mac surname. The prefix O has sometimes been erroneously assumed.
Early Origins of the McCostelloe family
The surname McCostelloe was first found in County Mayo
(Irish: Maigh Eo) located on the West coast of the Republic of Ireland
in the province of Connacht
, where they were granted lands by the Earl of Pembroke in the Anglo- Norman invasion
Early History of the McCostelloe family
This web page shows only a small excerpt of our McCostelloe research.Another 275 words (20 lines of text) covering the years 1172, 1500, 1803 and 1865 are included under the topic Early McCostelloe History in all our PDF Extended History products and printed products wherever possible.
McCostelloe Spelling Variations
Since church officials and medieval scribes spelt each name as it sounded to them; as a result, a single person could accumulate many different versions of his name within official records. A close examination of the origins of the name McCostelloe revealed the following spelling variations: Costello, MacCostello, Costillo, Costallo, Kostello, McCostello, Caustello, Costellow and many more.
Early Notables of the McCostelloe family (pre 1700)
More information is included under the topic Early McCostelloe Notables in all our PDF Extended History products
and printed products wherever possible.
Migration of the McCostelloe family to the New World and Oceana
Ireland's Great Potato Famine
left the country's inhabitants in extreme poverty and starvation. Many families left their homeland for North America for the promise of work, freedom and land ownership. Although the Irish were not free of economic and racial discrimination in North America, they did contribute greatly to the rapid development of bridges, canals, roads, and railways. Eventually, they would be accepted in other areas such as commerce, education, and the arts. An examination of immigration and passenger lists revealed many bearing the name McCostelloe: Honor Costello who landed in America in 1756; Bernard, Cornelius, Edward, Hugh, J.B. James, John, John B. Lawrence, Mark, Michael, Neal, Patrick, Peter, Philip, Thomas, Timothy, and William Costello, all landed in Philadelphia, Pennsylvania between 1833 and 1874.
The McCostelloe Motto
The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.
Motto: Ne te quaesiveris extra
Motto Translation: Seek nothing beyond your sphere.