The Duke of the Abruzzi, Italian mountaineer and explorer, c1910s(?). Luigi Amedeo Giuseppe Maria Ferdinando Francesco (1873-1933), son of Amadeo I, King of Spain, made the first ascent of Mount Saint Elias (Alaska-Yukon) in 1897 and in 1909 led an expedition to K2 in the Karakorum. In the First World War he served as an Admiral in the Italian Navy. (Photo by The Print Collector/Print Collector/Getty Images)

The Duke of the Abruzzi, Italian mountaineer and explorer, c1910s(?). Luigi Amedeo Giuseppe Maria Ferdinando Francesco (1873-1933), son of Amadeo I, King of Spain, made the first ascent of Mount Saint Elias (Alaska-Yukon) in 1897 and in 1909 led an expedition to K2 in the Karakorum. In the First World War he served as an Admiral in the Italian Navy. (Photo by The Print Collector/Print Collector/Getty Images)