McMahon Coat of Arms Record & History

A record of documented arms, meaning and origin, researched for the McMahon family of Ireland.

Reg. 2170 · Irish, M–O

Coat of Arms & Family Crest Details

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Where the McMahon Arms Were Recorded

Carlow
Map of Ireland showing where the McMahon arms are recorded

The McMahon arms were recorded in Carlow, c. 1645.

Carlow was small, rich farming country in south-eastern Ireland, taken early by Norman families. Good land kept the same families on it, and staying put is what puts a name in the records.

This is where the arms were entered in the register. Families often moved to other parts of the country, so the same name can turn up in more than one region.

Region
Carlow
Town
Hollymount
First recorded
1645

Granting Authority for the McMahon Arms

Arms of Ulster King of Arms
Ulster King of Arms Sodacan · CC BY-SA 3.0
Authority

Ulster King of Arms

1552-1943

The body that granted and recorded arms in Ireland in this period.

Portrait of Charles I of England
Charles I of England
Sovereign of the period

Charles I of England

1625–1649

Reigning in Ireland when the McMahon arms are first recorded.

How Arms Worked in Ireland

The Ulster King of Arms granted coats of arms to individuals who proved their social standing and good character. These symbols were typically inherited by all legitimate descendants of the original holder. If a family branch wanted a unique look, they could apply for a specific change to their design through the office to ensure their identity remained distinct.

Granting authority
The Ulster King of Arms acted as the official body that regulated and issued all coats of arms throughout Ireland.
How they got arms
Families obtained their arms through formal grants issued by the office after proving their eligibility and paying the required fees.
Where arms were recorded
All official grants were recorded in the registers held by the Ulster King of Arms starting from the year 1552.
The family's standing
Recorded among the armigerous families of Carlow.

Origin & History of the McMahon Family in Ireland

The name McMahon is an Anglicized version of the Gaelic surname Mac Mathghamhna, which translates to "son of the bear." The family traces its deepest roots to the province of Ulster, where they were a prominent sept of the Airgíalla. By the mid-seventeenth century, the family had established a notable presence in County Carlow, as evidenced by records from 1645. During this period of Irish history, many families were displaced due to political upheaval and the shifting ownership of land. Despite these challenges, the McMahons maintained their identity as they moved across different regions of Ireland. Their history reflects the broader story of Gaelic clans who navigated centuries of social and political change while preserving their ancestral name.

McMahon Meaning & Related Branches

Root word
Mac Mathghamhna

Son of the bear

This name
McMahonDerived from an ancient Gaelic term signifying a descendant of a bear-like warrior.
also spelled
Mcmahan
Mcmahen
Related arms
Mac Mahonvariant spelling

Documented Sources

Sir Bernard Burke, The General Armory of England, Scotland, Ireland and Wales, London: Harrison & Sons, 1884

MacLysaght, Edward. The Surnames of Ireland. 1985

O'Hart, John. Irish Pedigrees; or, The Origin and Stem of the Irish Nation. 1892

National Archives of Ireland. Civil Survey of the County of Carlow. 1654

The McMahon arms on the framed, black wood
Framed, black wood11 × 14 in, printed on heavy archival paper, framed in black wood and ready to hang.
$119.00
Free shipping
The McMahon arms on the set of 4 mugs
Set of 4 mugsFour matching 11 oz white ceramic mugs, dishwasher safe, the arms printed on each.
$49.99
Free shipping
The McMahon arms on the family cap - unisex
Family cap - unisexWalnut bill, cream crown, one size fits all. The arms on the front.
$39.99
Free shipping
The McMahon coat of arms
Digital archive pack Coat of arms PNG, gold border print PDF, vector SVG and the certificate of authenticity. Sent to your email in minutes.