World's wealthiest dog Gunther VI lists mansion formerly owned by Madonna for $32M (Photos)

Gunther VI, a German shepherd that many call the world’s wealthiest dog, could fetch $31.75 million from the sale of his mansion in Miami. The 8,400-square-foot home at 3029 Brickell Ave. was previously owned by pop superstar Madonna before it literally went to the dogs. When German countess Karlotta Liebenstein died in 1992, she left her vast fortune to her dog, Gunther III. Without any children, she willed her $80 million estate to her dog and put human managers in charge. In 2000, Gunther…