Complex sentence: As the church was badly damaged during Ottoman wars, its interior was changed to Baroque style, installing several altars including a "Hochaltar" in the choir with a painting by Paul Troger showing the stoning of St. Stephan.
Split into simpler sentences: As the church was badly damaged during Ottoman wars, its interior was changed to Baroque style, installing several altars. The new "Hochaltar" (high altar) in the choir with a painting by Paul Troger showing the stoning of St. Stephan.