Luigi Amedeo di Savoy, the Duke of Abruzzi [1873 - 1933] was born in Madrid to the then king of Spain also a Savoy, who abdicated his throne only a few weeks after his son's birth and returned to Italy. When he was six years old, young Luigi was assigned to the Italian Navy and received his entire education in military schools. A man of great energy and imagination, at the age of 24 he organised and led the expedition that made the first ascent of Mount St Elias [5,484 metres] in Alaska in 1897. Two years later he led an expedition to the North Pole which reached a latitude 86^34' north, a new record at the time. In 1906 he led the Rwenzori expedition which climbed all the major peaks and made the most extensive exploration of the range before or since. A few years later, in 1909, he organised an expedition to the Karakoram and set the record to the highest altitude yet achieved by ascending the second highest mountain in the world, K2, to a height of about 7,500 metres [24,600 feet], along the route that today bears his name, the Abruzzi ridge.