Complex sentence: Nathaniel North (ca.1671-ca.171?) was an English pirate during the Golden Age of Piracy, operating in the Indian Ocean under under John Bowen and then as captain of the "Defiant" following Bowen's retirement in 1704.
Split into simpler sentences: Nathaniel North (ca.1671-ca.171?) was a pirate during the Golden Age of Piracy who operated in the Indian Ocean. He served under John Bowen and succeeded him as captain of the "Defiant" following Bowen's retirement in 1704.