Complex sentence: Agrippina landed at Bauli, between Baiae and Cape Misenum, and completed her journey in a litter, but after the banquet, when night had fallen, she was induced to return to Bauli in the vessel which had been prepared for her destruction.
Split into simpler sentences: Agrippina landed at Bauli, between Baiae and Cape Misenum, and completed her journey in a litter. After the banquet, when night had fallen, she was induced to return to Bauli in the vessel which had been prepared for her destruction.