Farmers in Bavaria developed the Giant Schnauzer as a bigger, tougher Standard Schnauzer that could drive cattle to market and guard the farm at night. It later watched over breweries and butcher shops and served as a police and military dog. The result is a powerful, square-built dog with a harsh, wiry coat in solid black or pepper and salt, plus the breed's beard and bushy eyebrows.
Giants tend to be loyal, territorial and very smart, devoted to family and reserved with strangers. They learn fast but test boundaries, so they suit experienced owners who like structure. The coat sheds little, but it needs regular brushing, beard washing and professional clipping or hand stripping every six to eight weeks. Each dog varies in temperament and energy.