Charles (3rd Baron Baltimore)1637–1715, English colonial administrator in America: governor (1661–75) and proprietor (1675–89) of Maryland (grandson of George Calvert).
2.
Sir George (1st Baron Baltimore)c1580–1632, British statesman: founder of the colony of Maryland.
3.
his son, Leonard, 1606–47, first colonial governor of Maryland 1634–47.
British Dictionary definitions for Calvert
Calvert
/ˈkælvət/
noun
1.
Sir George, 1st Baron Baltimore. ?1580–1632, English statesman; founder of the colony of Maryland
2.
his son, Leonard. 1606–47, English statesman; first colonial governor of Maryland (1634–47)