Founded in 1973, the inaugural game was in September of that year against US Castillionnaise, at the old soccer pitch in Moutfort. Gilbert Courades founded a Rugby School in 1974 and it has now evolved into a separate club (CSCE). Alex Van Zeeland & Greg Brittin founded a new RCL Juniors section in 2004: graduates from the first cohort of this academy joined the seniors team in 2014.
In 1976, RCL led Luxembourg into the international scene through FIRA (La Fédération Internationale de Rugby Amateur). RCL has contributed many players to the Luxembourg national side and is proud of all its players, past, present and future, who have represented the country with such distinction.