The Polish Lowland Sheepdog is an ancient breed first documented in the 13th century. They are referred to as a PON, short for their Polish name, Polski Owczarek Nizinny and are herders of considerable ability and are noted for their memory. They are medium-size and rectangularly built, with a docked tail. The double coat is long, dense and shaggy, making them appear larger than they actually are. This is a loyal breed that can be somewhat aloof and wary of strangers. Being strong-willed, they do best with a master that is willing to train and socialize them.