Gunther's owner is a German shepherd named Gunther VI, who is often referred to as the world's richest dog. His owner is a trust established by the late German countess Karlotta Liebenstein, who left her fortune to Gunther VI after her death in 1992. The trust manages a substantial estate, including properties and investments, which are used to maintain Gunther's luxurious lifestyle. The trust has been managed by a team of caretakers and financial advisors, ensuring that Gunther VI and his successors continue to live in comfort. The wealth has allowed Gunther to enjoy a life filled with luxury, including private jets and lavish homes, making him a notable figure in popular culture.