Complex sentence: In 1742, Vernon was replaced by Admiral of the Fleet Chaloner Ogle and returned to England, where he gave an accounting to the Admiralty, and found that he had been elected MP for Ipswich.
Split into simpler sentences: In 1742, Vernon was replaced by Admiral of the Fleet Chaloner Ogle and returned to England, where he gave an accounting to the Admiralty. He learned that he had been elected MP for Ipswich.