The English claim they invented it. Bayern is German for our word Bavaria. Munich is English for the German Muenchen.
Most people follow a football team because of local loyalty, family influence or just fashion.
My vote goes to Borussia Moenchengladbach. The top four teams in the Premiership all play in red at home. There must be a limit to how far we can throw a javelin, or how fast we can run 100m. Most international football teams play in colours in relation to their national flags, OK Holland play in Orange but that can be explained. The original Football World Cup was called the Jules Rimet Cup, and was presented to Brazil when they won the World Cup for the third time.