The first mention of the castle occurred in the 12th century.

The first documented mention of the town occurred in 1270.

First mention of the book occurs on 23 July.

Further mention of the development program occurred in 2011.

However, the first historical mention of the name occurs in 1136 as Purrentru.

The first mention of this property occurs in 1279.

The first mention of this office occurs in 791.

The first mention of the name Guttentag occurred in 1636.

The first mention of the follow on occurs in 1787.

The first mention of the town occurs in a document dated September 9, 1297.