Complex sentence: Grenville led five of these ships to Plymouth to join the English defences and returned to Bideford where he provisioned the remaining two ships for Roanoke, a voyage that later turned back after being raided by the French.
Split into simpler sentences: Grenville led five of these ships to Plymouth to join the English defence and returned to Bideford where he provisioned the remaining two ships for Roanoke. A voyage that later turned back after being raided by the French.