Complex sentence: On arrival in Paris the ambassadors received a cold welcome by the new King Charles IV. The English therefore decided to prepare for war and the Earl of Kent was given command of the army assembling for Gascony.
Split into simpler sentences: On arrival in Paris the ambassadors received a cold welcome from the new French king, Charles IV. The English therefore decided to prepare for war. The Earl of Kent was given command of the army assembling for Gascony.