A serious historian, using written sources, is bound to pay more attention to those who wrote them.

The written sources are few, and offer a selective view of this age.

A chapel is mentioned on the site in written sources from 1132.

In older written sources, a variant of the name is found.

The written sources are briefly silence on the period after this.

It is mentioned in written sources from 1229 to 1298.

It is first mentioned in written sources dated to 1271.

It was first mentioned in written sources dating to 1228.

It is confirmed in written sources from at least 1267.

The first written sources are from the 16th and 17th centuries.