Complex sentence: Angered, Lussurioso rushes off to find Spurio, and bursts into the ducal bedchamber, only to find his father lawfully in bed with the Duchess.
Split into simpler sentences: Angered, Lussurioso rushes off to find Spurio. Lussurioso bursts into the royal bedchamber, only to find his father lawfully in bed with the Duchess.