Complex sentence: The house was named for George Clinton, who served as the first Governor of New York and fourth Vice-President of the United States, who was believed to have lived there after the American Revolutionary War, but now it is known that it was never his residence.
Split into simpler sentences: The house was named for George Clinton, who served as the first Governor of New York and fourth Vice-President of the United States. He was believed to have lived there after the American Revolutionary War, but it is now known that it was never his residence.