Complex sentence: It was founded in Mézières (now Charleville-Mézières) in 1903 by the entrepreneur Adolphe Clément and continued manufacturing until 1922 when it was broken up and the main factory in Paris was taken over by Citroën.
Split into simpler sentences: It was founded in Mézières (now Charleville-Mézières) in 1903 by the entrepreneur Adolphe Clément. In 1922 the company was broken up and the factory in Paris was taken over by Citroën.