Kavanagh (surname) Kavanagh (surname) Kavanagh or Kavanaugh is a surname of Irish origin, Caomhánach in Irish Gaelic. It is properly "Mac Murchadha Caomhánach" (an example of an Irish agnomen; see "Ó Catharnaigh Sionnach" or Fox of Fir Teathbha), but is often now rendered 'Caomhánach' or rarely 'Ó Caomhánaigh'. "Kavanagh" and "Kavanaugh" are anglicised variations of the Irish Gaelic surname Caomhánach (Cʌoṁʌ̃nʌċ in traditional Gaelic script). The surname was first assumed by Domhnall Caomhánach (the eldest son of the 12th century King of Leinster, Diarmait Mac Murchada) in Ireland. A considerable number of anglicised variations of Caomhánach exist, with some of the most
Heron (surname) Heron (surname) Heron or Héron is a surname originating in the British Isles and Normandy during the Middle Ages. This name is believed to have more than one origin. In England, it is most commonly derived as nickname for a tall, thin man with long legs from Middle English heiroun/heyron itself coming from Old French hairon. The surname may also be an habitual name; of Anglo-Saxon origin from Harome in North Yorkshire or Norman origin from Le Héron, near Rouen. In Ireland, this surname is often an Anglicised form of any one of three Irish Gaelic names: "O'hEarain", descendant of