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![Show Contents]() O'Dilon History, Family Crest & Coats of Arms
- Origins Available:
 Ireland
The surname is one of the Anglo-Norman names that arrived in Ireland in the wake of the 12th century invasion by Richard "Strongbow" de Clare, 2nd Earl of Pembroke. The surname O'Dilon belongs to the large category of Anglo-Norman habitation names, which are derived from pre-existing names for towns, villages, parishes, or farmsteads. Originally, these place names were prefixed by de, which means from in French. The name of the O'Dilon family comes from the name of the town of Lyon in central France. In France, the name may also have been a nickname for a fierce or brave warrior, as derived from the Old French word "lion," which meant "lion." The Irish Gaelic form of the surname O'Dilon is Diolún. Early Origins of the O'Dilon familyThe surname O'Dilon was first found in at Drumrany in County Westmeath (Irish: An Iarmhí) in the Irish Midlands, province of Leinster, where they were the Barons of Drumrany. The Dillon family is descended from Sir Henry de Leon, a member of a noble Breton family who came to Ireland in 1185, in the service of the Earl of Morton, who later became King John. For de Leon's service, King John granted him MacCarrons territory, part of Annaly, and other vast possessions, including a castle at Dunimon. Early History of the O'Dilon familyThis web page shows only a small excerpt of our O'Dilon research. Another 184 words (13 lines of text) covering the years 1533, 1572, 1605, 1610, 1615, 1624, 1627, 1629, 1630, 1633, 1642, 1649, 1652, 1672, 1674, 1682, 1685, 1689, 1691, 1713, 1715 and 1794 are included under the topic Early O'Dilon History in all our PDF Extended History products and printed products wherever possible. O'Dilon Spelling VariationsChurch officials and medieval scribes often spelled early surnames as they sounded. This practice often resulted in many spelling variations of even a single name. Early versions of the name O'Dilon included: Dillon, Delion, Dilune, Dilon, Dylon, Dillan, Dillen and many more. Early Notables of the O'Dilon familyNotable amongst the family up to this time was Sir Bartholomew Dillon (died 1533), a leading Irish judge who held the offices of Chief Baron of the Irish Exchequer and Lord Justice of Ireland. Hewas born at Riverston, County Meath. Theobald Dillon, 1st Viscount Dillon (died 1624), was an Irish military commander and adventurer who claimed descent from the Anglo-Norman Henry le Dillon; Lucas Dillon, 2nd Viscount Dillon (1610-1629); Theobald Dillon, 3rd Viscount Dillon (1629-1630); Thomas Dillon, 4th Viscount Dillon (1615-1672); Thomas Dillon, 5th Viscount Dillon (d. 1674); Lucas Dillon, 6th Viscount Dillon (d. 1682); Theobald Dillon, 7th Viscount Dillon...
Another 100 words (7 lines of text) are included under the topic Early O'Dilon Notables in all our PDF Extended History products and printed products wherever possible. Migration of the O'Dilon familyIreland went through one of the most devastating periods in its history with the arrival of the Great Potato Famine of the 1840s. Many also lost their lives from typhus, fever and dysentery. And poverty was the general rule as tenant farmers were often evicted because they could not pay the high rents. Emigration to North America gave hundreds of families a chance at a life where work, freedom, and land ownership were all possible. For those who made the long journey, it meant hope and survival. The Irish emigration to British North America and the United States opened up the gates of industry, commerce, education and the arts. Early immigration and passenger lists have shown many Irish people bearing the name O'Dilon: William Dillon who settled in St. John's, Newfoundland in 1796; John Dillon settled in St. John's in 1814; Moses Dillon settled in Harbour Grace in 1814.
| Contemporary Notables of the name O'Dilon (post 1700) | + |
- Odilon Desmarais KC (1854-1904), French Canadian lawyer, judge and politician, Member of the Canadian Parliament for St. James (1896-1901)
- Odilon Demers, American Republican politician, Candidate for New Hampshire State Senate 19th District, 1916 1
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: Dum spiro spero
Motto Translation: While I have breath I hope.
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