Claude Kogan

After notable feats such as the first ascent of Nun (7,135 m (23,409 ft)), she died in October 1959 while leading a women-only expedition to climb Cho Oyu, the sixth-highest mountain in the world, on the China Tibet–Nepal Province No.

[1][2] In the early 1950s she and her husband climbed in South America and claimed the first ascent of Alpamayo, and also reached the summit of Kitarahu (both with Nicole Leiniger).

Her husband died in 1951, but Kogan returned to South America in 1952 and climbed Salcantay with the expedition led by Bernard Pierre.

In 1953, she climbed Nun, 7,135 metres (23,409 ft), in India in a Pierre-led expedition, summitting with Pierre Vittoz after the other climbers had been caught by avalanches.

[5] Media related to 1959 women-only international expedition to climb Cho Oyu at Wikimedia Commons The expedition to Cho Oyu in 1959 was noteworthy not just because it consisted of female climbers but also because it was international: besides the French Kogan the team also included Loulou Boulaz from Switzerland, Dorothea Gravina, Margaret Darvall and Eileen Healey from the UK, the Belgian Claudine van der Straten-Ponthoz, and the French mountaineers Jeanne Franco, Colette LeBret and Micheline Rambaud.