Final answer:
John Ward was an English sailor who became a corsair and converted to Islam. He used his knowledge to guide other corsairs across the Indian Ocean.
Step-by-step explanation:
John Ward was an English sailor who became a corsair and later converted to Islam. He was not a Christian king but rather an individual who chose a different path for his life. His conversion to Islam allowed him to establish alliances with Muslim corsairs and direct them in navigating the Indian Ocean.