Complex sentence: His body was salted, set up in Shrewsbury impaled on a spear between two millstones in the marketplace pillory, with an armed guard and was later quartered and put on display in Chester, London, Bristol and Newcastle upon Tyne.
Split into simpler sentences: His body was salted, set up in Shrewsbury impaled on a spear between two millstones in the pillory in the marketplace, with an armed guard and was later quartered and put on show in various corners of the country. His quarters were sent to Chester, London, Bristol and Newcastle upon Tyne.