family name vs forename

family name

noun
  • A surname. 

  • A given name common in a family, or already borne by someone in the family (in the context of naming someone in the family after that family member). 

forename

noun
  • A name that precedes the surname. 

verb
  • Synonym of prenominate 

  • To assign (someone) a first name. 

  • To appoint in advance. 

How often have the words family name and forename occurred in a corpus of books? (source: Google Ngram Viewer )