Climber born in South Tyrol, Italy, 1956. Climbed together with Reinhold Messner for several times. Most noticeable was their traverse between the Gasherbrum summits. He has set many speed records in alpinism, for instance an impressing 23.5 hours ascent and ski-descent of Mount Everest from the base camp in 1996. He also once climbed up and down Matterhorn, 4478 meters, four times in less than 24 hours.
Facts from different sources such as: and various climbing websites.