Werner was appointed as Finance Minister of Luxembourg in 1953, and was 19th and 21st Prime Minister from 1959 to 1974 and from 1979 to 1984.
Вернер вошел в состав правительства Люксембурга министром финансов в 1953 году, и был премьер-министром с 1959 по 1974 и с 1979 по 1984 год.