Charles Antenen was born in what Swiss city  located in the Jura mountains at an altitude of 1000 m
Charles Antenen: Charles Antenen (3 November 1929 in La Chaux-de-Fonds – 20 May 2000) was a Swiss football (soccer) player, who was nicknamed "Kiki". La Chaux-de-Fonds:  It is located in the Jura mountains at an altitude of 1000 m, a few kilometres south of the French border.
i don't know