Complex sentence: The castle dates to the early 13th century (first mentioned in 1229), destroyed in 1350 by Rudolf Brun, the mayor of Zürich, and rebuilt in 1352/54 by Albrecht II, Duke of Austria.
Split into simpler sentences: The castle dates back to the early 13th century (first mentioned in 1229). In 1350, it has been destroyed by Rudolf Brun, the mayor of Zürich, and has been rebuilt in 1352/54 by Albrecht II, Duke of Austria.