A record of documented arms, meaning and origin, researched for the Deasy family of Ireland.
Reg. 3740 · Irish, D–F
Coat of Arms & Family Crest Details
Symbols on this shield
handFaith, sincerity and justice
towerGrandeur and solidity, and a stronghold defended
Colours
Silver (Argent)Means: Peace and sincerity
Red (Gules)Means: Military strength
Historical info
Source
Sir Bernard Burke, The General Armory of England, Scotland, Ireland and Wales, London: Harrison & Sons, 1884
Blazon (the actual original written record)
“Ar. in base a dexter hand ppr. holding a dagger erect of the last, pommel and hilt or, and in chief two castles gu”
IrelandExchequer, c. 1645
Where the Deasy Arms Were Recorded
Dublin
Map of Ireland showing where the Deasy arms are recorded
The Deasy arms were recorded in Exchequer, c. 1645.
Arms such as these were typically recorded in Dublin.
Dublin was the seat of government in Ireland and the place where grants were sought and recorded. Families with business at the castle or the courts settled nearby, and settling there put their arms on record.
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.
The body that granted and recorded arms in Ireland in this period.
Charles I of England
Sovereign of the period
Charles I of England
1625–1649
Reigning in Ireland when the Deasy 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 Ireland.
Origin & History of the Deasy Family in Ireland
The surname Deasy is primarily associated with the province of Munster in Ireland, particularly County Cork, though its presence in Dublin by 1645 highlights the family’s early mobility and integration into urban centers. The name is an Anglicized version of the Gaelic Irish name Ó Deasa, which translates to a descendant of Deasach, a personal name derived from the word for "south" or "proper." Historically, the family belonged to the Gaelic professional class and was often linked to the legal and scholarly traditions of the region. By the mid-17th century, members of the family were navigating the complex political landscape of Ireland, moving from their rural ancestral roots into the capital city during a time of significant social upheaval. This transition suggests that the family held enough status or professional utility to establish themselves in Dublin’s administrative and economic life during the mid-1600s.
Related Branches & Arms
Root word
Deiseach
A person belonging to the Desi tribe or people.
This name
DeasyDerived from a tribal designation indicating descent from the ancient Desi people of Munster.
also spelled
Deasie
Related arms
Marlayrecorded with Deasy, same area
Methwoldrecorded with Deasy, same area
Woodlockrecorded with Deasy, same area
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
Woulfe, Patrick, Sloinnte Gaedheal is Gall: Irish Names and Surnames, 1923
National Archives of Ireland, Civil Survey of the County of Dublin, 1654–1656
Digital archive packCoat of arms PNG, gold border print PDF, vector SVG and the certificate of authenticity. Sent to your email in minutes.
handFaith, sincerity and justice
towerGrandeur and solidity, and a stronghold defended
handFaith, sincerity and justice
towerGrandeur and solidity, and a stronghold defended
