Complex sentence: The estate was owned by the Bishops of London for over 1300 years and the palace was their country home from at least the 11th century, and their main residence from the early 20th century until 1973.
Split into simpler sentences: The estate was owned by the Bishops of London for over 1300 years. The palace was their country home from at least the 11th century and their main residence from the early 20th century until 1973.