camposanto vs urnfield

camposanto

noun
  • A burial place or cemetery, in Italian- or Spanish-speaking regions. 

urnfield

noun
  • Ground used as a cemetery in Bronze Age Europe, in which the ashs of cremations were buried in cinerary urns. 

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