There is no such thing as a ""pure"" bandog(which could be said for just about any of the ""pure breeds"" we know today... Bandogs are just mix bred molossers, usually comprised of Bully breed crossed with mastiff breed. I guess, if one wanted to get picky, ANY mix of ANY 2 different molossers could constitute a bandog... but that won't be the popular answer or even accepted. The original bandog were just dogs who were kept chained, or Banded, during the day and let loose at night to guard the owners property. Hope this helped. Mike