Switzerland is a country with four main languages. 75 years ago, Romansh was recognized as the fourth national language by ballot. Since then, it has been declared a dead language many times over. If you visit the Engadin Valley in Grisons, it will show that the language is alive and kicking. It is alive thanks to the children of migrant workers living there.
Emperors, Kings, and other rulers had the prerogative of granting the right to hold markets and fairs. Markets were regular affairs held on a specific day of the week every week; fairs were intended to be much larger and would be held over several days or even weeks once a year. Both were intended to strengthen local business and provide additional tax income.
Looking for a good pub quiz question? This one might catch some people out. Europe has a surprising number of monarchies, ranging from the well known to the obscure. They cover the spectrum from constitutional monarch through power sharing to absolute ruler. The youngest monarchy was instituted in 1929 (and that's a clue).