DUCOS, PIERRE ROGER (1754-1816), French politician, was born at Dax. Despite his lack of ability, he ascended the highest rungs of the political ladder from the day when he be came member of the council of the Five Hundred, serving suc cessively as a director, consul and vice-president of the Senate. He abandoned Napoleon in 1814, but was himself exiled in 1816. He died at Ulm in March 1816.