Complex sentence: Zarakas is a ruined frankish monastery built on the shores of Lake Stymphalia in the Peloponnese in Greece after the Frankish occupation of parts of the Byzantine Empire.
Split into simpler sentences: Zarakas is a ruined frankish monastery near Stymfalia, in the Peloponnese in Greece. It was built on the shores of Lake Stymphalia after the Frankish occupation of parts of the Byzantine Empire.