Complex sentence: In 1804 d'Éon was sent to a debtors' prison for five months and signed a contract for a biography to be written by Thomas William Plummer, which was never published, because d'Éon became paralyzed following a fall.
Split into simpler sentences: In 1804 d'Éon was sent to a debtors' prison for five months, and signed a contract for a biography to be written by Thomas William Plummer. The book was never published, because d'Éon became paralyzed following a fall.