Mogul vs Sultana

Mogul

name

  • A census-designated place in Washoe County, Nevada, United States. 

noun

  • A steam locomotive of the 2-6-0 wheel arrangement. 

Sultana

name

  • A census-designated place in Tulare County, California, United States. 

  • A surname. 

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