Calvert, Charles, 3d Baron Baltimore, 1637–1715, second proprietor of Maryland. He was sent over as deputy governor of that province in 1661 by his father, Cecilius Calvert, 2d Baron Baltimore, and at his father's death in 1675 succeeded to the proprietorship. A Roman Catholic faced by an overwhelming Protestant population, he ruled arbitrarily, restricting the suffrage, and filling the offices with his partisans. He became involved in a bitter dispute with William Penn over the northern boundary of his grant and in 1684 went to England to defend himself in this dispute and to answer charges of favoring Catholics and obstructing customs collection. He never returned. His charter was overthrown by a Protestant revolt in 1689, and in 1692 a royal government was established.
See C. C. Hall, The Lords Baltimore and the Maryland Palatinate (1902).
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