Complex sentence: The last king, Tarquin Superbus, ruled in a tryannical manner, and in 510 BC, his son Sextus Tarquinius raped a noblewoman named Lucretia.
Split into simpler sentences: The last king, Tarquin Superbus, was a tyrant. In 510 BC, Tarquin's son, Sextus Tarquinius, raped a noblewoman named Lucretia.