The Silesian Black has one known relative: The Silesian Blonde. They are virtually identical except for colour and vocalization.
Silesian Black and Blonde. Note the distinctive white "pants" on the Black.
The Silesian Black and Blonde: basically the same dog, different colour
Relentless companions, The Silesian Black and Blonde will play together until the point of total exhaustion
A handsome creature, the Silesian Blonde is not quite as chunky as the Silesian Black