The current coat of arms was approved in 1993 .

The current coat of arms can be traced to the city's first known seal, dating from 1311.

Thus, the current coat of arms applies to the municipality as a whole.

As seen above, this is still the basis of the current coat of arms.

The community's current civic coat of arms was granted in 1953 and is based on seals known from the 15th century.

The current coat of arms includes elements from all three former municipalities.

The current coat of arms has been established to be from a seal impression dating back to 1387.

The current coat of arms appeared for the first time in a seal from the 16th century.

The current coat of arms is much different from the original.

In 1848 the city adopted its current coat of arms.