Complex sentence: A large number of British colonists who were "energetic and of good character" moved to Florida, mostly coming from South Carolina, Georgia and England though there was also a group of settlers who came from the colony of Bermuda.
Split into simpler sentences: A large number of British settlers who were "energetic and of good character" moved to Florida, mostly coming from South Carolina, Georgia and England. There was also a group of settlers who came from the colony of Bermuda.