What does Gael mean?
A name of disputed origin, now very popular in Spanish-speaking countries (notably through actor Gael García Bernal). It is usually tied to Brittany, either as a short form of the Breton Gwenael (gwenn 'white, blessed' + hael 'generous') or to the Gaels, the Celtic peoples. No single etymology is firmly established.
What does Nicolás mean?
The Spanish form of Nicholas, from the Greek Nikolaos, combining nike 'victory' and laos 'people'. Popularized by Saint Nicholas of Myra, the 4th-century bishop who became the basis for Santa Claus.