Origin of the Name Mangan
The ancient history of the name Mangan
was found in the allfamilycrests.com archives. The normal form of the name Mangan in Irish is O'Mongain, which is more phonetically anglicized as Mongan in parts of Connacht. In Mayo, the original homeland of one of the Septs so called, it is more usually Mangan nowadays. The Munster Mangans, originally of County Cork , are now found more in County Limerick . The Munster Mangans have been long enough established in County Limerick to have a townland called after them in the parish of Dromcolliher, namely Ballymongane. This is also the name of a townland in the parish of Kilnamona in County Clare. The Ulster Sept, which, as erenaghs of St. Caireall, gave its name to the parish of Termonomongan in County Tyrone, appears to be now almost extinct. Three brothers named Warburton who assumed the name Mongan, 1810-1894, were of sufficient importance to be included in Crone's Dictionary of Irish Biography.
The Mangan coat of arms came into existence centuries ago. The process of creating coats of arms (also often called family crests) began in the eleventh century although a form of Proto-Heraldry may have existed in some countries prior to this. The new art of Heraldry made it possible for families and even individual family members to have their very own coat of arms, including all Mangan descendants.