The Maryland state flag represent the family crest of both the Calvert and Crossland families. Cecil Calvert Maryland, the 2nd Lord Baltimore, founded Maryland as an English colony in 1634. The black and gold design on the Maryland state flag is the coat of arms from the Calvert line. The Crossland coat of arms, the family of Lord Baltimore’s mother, features a cross bottony with the red and white sides of the cross alternating.
The Maryland state flags is only 1 of 4 state flags that do not use blue in its design. It is also the only U.S. state flag to be directly based on English heraldry.