Box vs Principality

Box

name
  • A village near Corsham, Wiltshire, England (OS grid ref ST8268). 

  • A surname. 

  • A village in Minchinhampton parish, south of Stroud, Gloucestershire, England (OS grid ref SO8600). 

Principality

name
  • Wales 

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