Complex sentence: The house was owned by the immediate Finch family until 1782 when the 4th Earl of Aylesford sold the estate to his brother Captain William Clement Finch, a naval captain who had acquired a fortune by capturing a Spanish ship.
Split into simpler sentences: The house was owned by the immediate Finch family until 1782 when the 4th Earl of Aylesford sold the estate to his brother Captain William Clement Finch. He was a naval captain who acquired a fortune by capturing a Spanish ship.