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
Beaton (surname) Beaton (surname) Beaton is a Scottish surname in the English language, which has multiple origins. One origin of the name is from the placename of Béthune, in Pas-de-Calais, France. Another derivation is from the mediaeval personal name "Beaton", "Beton", which is pet form of a short form of the names "Bartholomew" or "Beatrice". "Bartholomew" is a masculine name, while "Beatrice" is a feminine name; the names are not etymologically related to each other. Another derivation of the surname "Beaton" is that it is an Anglicisation of the Scottish Gaelic "Mac Beath". The surname "Beaton" can be represented in Scottish Gaelic