Spaten
The BJCP credits the Munich brewery Spaten with developing Munich Dunkel in the 1830s and the amber lager of 1841 behind modern Märzen, and often with the first Munich Helles, in 1894.
Styles brewed by Spaten

Märzen
LagerMärzen: an amber German lager with rich, toasty malt and a dry finish, brewed in March and served at Oktoberfest until 1990. Strength, bitterness, glass and examples.

Munich Helles
LagerMunich Helles: a gold Bavarian lager, soft and malty with a dry finish, created in Munich in 1894. Strength, bitterness, glass and classic examples.

Munich Dunkel
LagerMunich Dunkel: a brown Bavarian lager with toasted, bready malt and no roast, developed at Spaten in the 1830s. Strength, bitterness, glass and classic examples.