He was called "Cecil Calvert." Cecil was a Roman Catholic and the colony of Maryland was officially Catholic. He managed Maryland from his home in England. Maryland was known for its religious toleration. At the time, there was a lot of religious persecution in England. Many Catholics fled (ran away to) Maryland because their religion was accepted there. Calvert was governor of Maryland for forty-two years. He died in England on November 30, 1675, aged 70 years. The city of Baltimore is named for him.