Question: Chloé Graftiaux, was a Belgian sport climber, who fell to her death, at what age, on the 3773 m Aiguille Noire de Peuterey at the Mont Blanc massif,a mountain range in the Alps, located mostly in France and Italy, but also straddling Switzerland at its northeastern end?
Sentence (from "Mont Blanc massif"): Because of its considerable overall altitude, a large proportion of the massif is covered by glaciers, which include the Mer de Glace and the Miage Glacierthe longest glaciers in France and Italy, respectively.
Relevant evidence: No