Nikolas Frantz was a Luxembourgish bicycle racer with 60 professional racing victories over his 12-year career. He rode for the Thomann team in 1923 and then for Alcyon-Dunlop from 1924 to 1931. He won the Tour de France in 1927 and 1928. In the yellow jersey at the 1926 Tour de France after stages 12–13 — 2 stages, July 10 to July 13, taking it from Lucien Buysse. Wiki link