20 Euros Hansestadt Rostock

Issued as part of Germany's ongoing series celebrating federal states, this coin commemorates the Hanseatic city of Rostock, whose mercantile prominence in the medieval Baltic trade network made it one of the founding members of the Hansa league in the 13th century. Rostock's university, founded in 1419, is the oldest in the Baltic Sea region — a fact the city has traded on politically and culturally ever since.

The .925 silver "Nordic Gold insert" bimetallic format used across this series was introduced in 2016, replacing the earlier pure silver format to control production costs while maintaining collector appeal.