Complex sentence: It was built around 1260 by the house of Blumenstein, the castle was first mentioned in 1332 in conection with knight Anselm from Batzendorf near Blumenstein.
Split into simpler sentences: It was built around 1260 by the House of Blumenstein. The castle was first mentioned in 1332 in connection with knight Anselm from Batzendorf near Blumenstein.