Costello (surname) to a Gaelic translation of Jocelyn, Jocelyn d'Angulo's given name. In fact, MacOisdealbhaigh is the Gaelic translation of his brother Hostilo (or Hostilio) d'Angulo's first name. Oisdealbh is a much more obvious translation of Hostilo. It is Hostilo's descendants who would bear the surname Mac Oisdealbhaigh (son of Oisdealbh or Hostilo). The surname would later be anglicized to Costello, Costelloe, and Costellow. Gilbert d'Angulo is also sometimes listed as the son of Jocelyn d'Angulo in error. Gilbert d'Angulo is the father of both Jocelyn and Hostilo. It occasionally has been adopted as a pseudonym or stage name by famous people
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