Original sentence: Since 1983, it has been the summer residence (July and August) of mountaineer Reinhold Messner, who has partially converted it into a museum displaying works of Tibetan art and a collection of masks from five continents
Edited sentence: Since 1983, it has been the summer residence (July and August) of famous mountaineer Reinhold Messner, who has partially converted it into a museum displaying works of Tibetan art and a collection of masks from five continents