List of Proprietors of Maryland

Maryland was a proprietary colony, in the hands of the Calvert family, who held it from 1633 to 1689, and again from 1715 to 1776. George Calvert, 1st Baron Baltimore (1580–1632) is often regarded as the founder of Maryland, but he died before the colony could be organized. Thus the colonial administration began with his son:

Henry Harford, the illegitimate son of Fredrick Calvert, sixth proprietor of Maryland, could not have been the fifth proprietor. He never was accepted and a short time later the Maryland convention took control of the colony (state).

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