Leonard Calvert
The first governor of the colony was Calvert's brother, Leonard, and Calvert appointed a Council to advise his brother. While the Calverts tried to keep representative government to a minimum, an Assembly soon developed, after persistent pressure from below on the proprietors. The proprietor and the Assembly soon quarreled over the extent of their relative powers, the proprietor claiming the sole right to initiate legislation, which the Assembly could then reject. The Assembly, with the power to hold up the enactment of laws, refused to consent to any imposition of a code by Calvert and thus won the fight to initiate legislation.
~Murray N. Rothbard, "Maryland", ch. 12, Pt. II of Conceived in Liberty vol. 1 (Arlington House, 1975), p. 115.