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 1928 Tour de France after stage 18 — 1 stage, July 11 to July 11, taking it from Joseph Mauclair. Wiki link