The surname Conelly originates from Ireland, where it first emerged in the 12th century. It is an Anglicized form of the Gaelic name O'Conghalaigh, which means "descendant of Conghalach." Conghalach was a personal name derived from the Irish word conghal, meaning "valorous" or "brave."
The name can be traced back to County Donegal in Ulster, where the O'Conghalaigh clan was based. Early records mention the family as lords of the territory known as Connellagh, located near the town of Lifford. This area likely served as the basis for the anglicized form of the surname.
One of the earliest known references to the name appears in the Annals of the Four Masters, a chronicle of medieval Irish history compiled in the early 17th century. The annals mention a chieftain named Muircheartach O'Conghalaigh, who ruled over Connellagh in the late 14th century.
The Conelly surname is also found in various spellings in old manuscripts and documents, such as O'Connolly, Connelly, and Connolly. These variations arose from the translation of the original Gaelic name into English by scribes and record keepers.
One notable figure bearing the surname was Sir John Connelly (1568-1624), an Irish soldier and landowner who served in the Spanish Army of Flanders during the Eighty Years' War. He was knighted by King Philip III of Spain for his military service.
Another prominent individual was Owen Connolly (1615-1698), an Irish Catholic bishop who served as the Bishop of Raphoe from 1647 to 1698. He played a significant role in preserving the Catholic faith in Ireland during the period of Protestant ascendancy.
In the 18th century, Arthur Connolly (1740-1802) was an Irish-born soldier and adventurer who served in various military campaigns, including the American Revolutionary War and the French Revolutionary Wars. He was known for his daring exploits and colorful life.
John Connolly (1750-1825) was an Irish-born American physician and statesman who served as the 12th Governor of Pennsylvania from 1808 to 1817. He played a crucial role in the development of the state's healthcare system and infrastructure.
Finally, James Brendan Connolly (1868-1957) was an Irish-born prelate of the Roman Catholic Church who served as the Bishop of Fall River, Massachusetts, from 1904 to 1949. He was a prominent figure in the Irish-American community and a champion of immigrant rights.