Complex sentence: Coates was soon exchanged and returned to Britain, where he was exhonnerated at a court-martial investigating the loss of "Thames" several of his officers were not repatriated however, remaining in French captivity for the next two years.
Split into simpler sentences: Coates was soon exchanged and returned to Britain, where he was exhonnerated at a court-martial investigating the loss of "Thames". Several of his officers were not repatriated however, remaining in French captivity for the next two years.