Complex sentence: The following spring, Howard set out from the Thames on 19 March, reaching Plymouth on 5 April, having had difficulty with victualling, he left without meeting his supply ships on the 10 April.
Split into simpler sentences: The following spring, Howard set out from the Thames on 19 March, reaching Plymouth on 5 April. Having had difficulty with victualling, he left without meeting his supply ships on the 10 April.