Complex sentence: His tomb was ransacked in 1832--two years before the Inquisition was disbanded--by rioters, his bones stolen and ritually incinerated as though an auto-da-fé took place.
Split into simpler sentences: His tomb was ransacked in 1832--two years before the Inquisition was disbanded. His bones were stolen and ritually incinerated as though an auto-da-fé took place.