. Lange & Söhne is a trademark of Lange Uhren GmbH, a German manufacturer of luxury and prestige watches. The company was originally founded by Ferdinand Adolph Lange in Glashütte, Germany in 1845. The original A. Lange & Söhne was nationalized and ceased to exist in 1948, following the occupation by the Soviet Union after World War II. The current A. Lange & Söhne trademark was re-registered when Lange Uhren GmbH was founded in 1990 by Walter Lange, the great-grandson of Ferdinand Adolph Lange.