Complex sentence: In 1742, when Silesia was seized by King Frederick the Great of Prussia in the War of the Austrian Succession, Görbersdorf was situated in the Prussian Province of Silesia.
Split into simpler sentences: In 1742, Silesia was seized by King Frederick the Great of Prussia in the War of the Austrian Succession. Görbersdorf then was situated in the Prussian Province of Silesia.