Complex sentence: Anti-Napoleonic sentiment was high in Southern France, and this was prominently displayed in the White Terror, which saw the purge of all important Napoleonic officials from government and the execution of others.
Split into simpler sentences: Anti-Napoleonic sentiment was high in Southern France, and this was prominently displayed in the White Terror. The White Terror saw the purge of all important Napoleonic officials from government, and the execution of others.