Complex sentence: When the last governor of Aden, Sir Humphrey Trevelyan, left the country he had no one to give the keys to but as a point of respect had the government house repainted for whoever emerged victorious.
Split into simpler sentences: When the last governor of Aden, Sir Humphrey Trevelyan, left the country with no immediately apparent successor. As a point of respect, he had the government house repainted for whoever emerged victorious.