Last but not least.

Yet another cousin.
The Entlebucher Sennenhund or Entlebucher Mountain Dog is the last in the Swiss Mountain Dog breeds.  The breed is named after a town and region in the Swiss canton of Lucerne. It is the smallest of the Swiss Mountain Dogs. While its origin is not certain, it is thought to be descended from the fighting and guarding mastiffs of the Roman legions. This breed is popular in Switzerland, but is rarely seen outside its native land.