Plunkett History, Family Crest & Coats of Arms
The Irish already had a system for creating hereditary surnames established when the followers of Strongbow settled in eastern Ireland. Although there was relatively little friction between the two systems because they operated according to very similar principles, the Strongbownians frequently used local surnames. In Ireland, local surnames were almost unheard of, but in England they were probably the most common form of hereditary surname. Local surnames, such as Plunkett, were taken from the name of a place or a geographical feature where the person lived, held land, or was born.
The surname Plunkett is derived from living in the settlement of Plouquenet in Ille-et-Vilaine in France. The surname Plunkett belongs to the large category of Anglo-Norman habitation names, which are derived from pre-existing names for towns, villages, parishes, or farmsteads. Some sources indicated that the surname Plunkett is a corruption of the Old French word blanchet, which means white. The Gaelic form of the surname Plunkett is Pluincéid.
Early Origins of the Plunkett family
The surname Plunkett was first found in County Louth (Irish: Lú) the smallest county in Ireland, located on the East coast, in the Province of Leinster, where they were granted lands when they accompanied Strongbow, Earl of Pembroke, in the invasion of Ireland.
"Little of certainty is to be gathered concerning this name before its appearance in Ireland. So early, however, as the 11th century, we find John Plukenet seated at Beaulieu, co. Meath : and from him springs the distinguished Irish families of the name, ennobled under the titles of Fingall Dunsany, and Louth." 
"A nephew of Lord Plugenet [in England] founded the family still existing in Ireland, though their pedigree declares that they are of Danish origin, and were seated at Bewley (Beaulieu) in co. Louth as early as the eleventh century. " 
"The younger branch was the more distinguished of the two. 'These 'Plunkets in Ireland,' says Camden, ' have been very eminent ever since Christopher Plunket (a person of great valour and wisdom who was deputy to Richard Duke of York, Viceroy in Henry VI. time) was raised to the dignity of Baron of Killin, which came to him by his wife, as heir to the family of the Cusacks.' Sir Christopher was Sheriff of Meath prior to 1442, and had married the only child of Sir Lucas de Cusack, Lord of Killeen, Dunsany, and Gerardstown in that county. All his three sons founded families. The eldest was the ancestor of the Earls of Fingall ; the second, Sir Christopher, was the first Lord Dunsany ; and the third, Sir Thomas, had to wife the heiress of Rathmore, which remained the home of his descendants. His son Sir Alexander 'a person of great account,' was appointed Chancellor of Ireland in 1492." 
Early History of the Plunkett family
This web page shows only a small excerpt of our Plunkett research. Another 114 words (8 lines of text) covering the years 1182, 1410, 1463, 1503, 1492, 1555, 1649, 1668, 1445, 1461, 1602, 1680, 1644, 1629, 1681 and 1920 are included under the topic Early Plunkett History in all our PDF Extended History products and printed products wherever possible.
Plunkett Spelling Variations
During an investigation of the origin of each name, it was found that church officials and medieval scribes spelled many surnames as they sounded. Therefore, during the lifetime of a single person, a name could be spelt numerous ways. Some of the spelling variations for the name Plunkett include Plunkett, Plunket, Plunkitt, Plunkit, Plunked, Plunkedd, Plunkidd and many more.
Early Notables of the Plunkett family (pre 1700)
Notable amongst the family up to this time was Sir Christopher Plunkett, 1st Baron of Dunsany (1410-1463); Alexander Plunket (died 1503), appointed Lord Chancellor of Ireland by King Henry VII of England in 1492; Oliver Plunkett, 1st Baron Louth (d. c. 1555), an Irish peer; and Christopher Plunkett, 2nd Earl of Fingall (died 1649).
Patrick Plunket (died 1668), was 9th Baron of Dunsany, co. Meath. An ancestor, Sir Christopher Plunket (d. 1445), was active in the Irish wars during the early part of the fifteenth century, and is said to have been deputy to...
In the United States, the name Plunkett is the 3,480th most popular surname with an estimated 9,948 people with that name. 
A great number of Irish families left their homeland in the late 18th century and throughout the 19th century, migrating to such far away lands as Australia and North America. The early settlers left after much planning and deliberation. They were generally well off but they desired a tract of land that they could farm solely for themselves. The great mass of immigrants to arrive on North American shores in the 1840s differed greatly from their predecessors because many of them were utterly destitute, selling all they had to gain a passage on a ship or having their way paid by a philanthropic society. These Irish people were trying to escape the aftermath of the Great Potato Famine: poverty, starvation, disease, and, for many, ultimately death. Those that arrived on North American shores were not warmly welcomed by the established population, but they were vital to the rapid development of the industry, agriculture, and infrastructure of the infant nations of the United States and what would become Canada. Early passenger and immigration lists reveal many Irish settlers bearing the name Plunkett:
Plunkett Settlers in United States in the 17th Century
Plunkett Settlers in United States in the 19th Century
Some of the first settlers of this family name were:
Plunkett Settlers in Canada in the 18th Century
Plunkett Settlers in Canada in the 19th Century
Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:
Plunkett Settlers in Australia in the 19th Century
Emigration to New Zealand followed in the footsteps of the European explorers, such as Captain Cook (1769-70): first came sealers, whalers, missionaries, and traders. By 1838, the British New Zealand Company had begun buying land from the Maori tribes, and selling it to settlers, and, after the Treaty of Waitangi in 1840, many British families set out on the arduous six month journey from Britain to Aotearoa to start a new life. Early immigrants include:
Plunkett Settlers in New Zealand in the 19th Century
The British first settled the British West Indies around 1604. They made many attempts but failed in some to establish settlements on the Islands including Saint Lucia and Grenada. By 1627 they had managed to establish settlements on St. Kitts (St. Christopher) and Barbados, but by 1641 the Spanish had moved in and destroyed some of these including those at Providence Island. The British continued to expand the settlements including setting the First Federation in the British West Indies by 1674; some of the islands include Barbados, Bermuda, Cayman Island, Turks and Caicos, Jamaica and Belize then known as British Honduras. By the 1960's many of the islands became independent after the West Indies Federation which existed from 1958 to 1962 failed due to internal political conflicts. After this a number of Eastern Caribbean islands formed a free association. 
Plunkett Settlers in West Indies in the 17th Century
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: Festina lente
Motto Translation: Be quick without impetuosity.