Complex sentence: The Curia Hostilia was the site of the irregular execution of the demagogue Lucius Appuleius Saturninus and his partisans, and burned down in 52 BC when a mob cremated the body of the demagogue Publius Clodius Pulcher inside it.
Split into simpler sentences: The Curia Hostilia was the site of the irregular execution of the demagogue Lucius Appuleius Saturninus and his partisans. It was burned down in 52 BC when a mob cremated the body of the demagogue Publius Clodius Pulcher inside it.