Maryland
This is a good flag.
Previously, Maryland had gone down the state seal on blue background route before changing it to the more chivalric heraldry that we recognise today.
The black and gold parts of the flag belong to the personal banner of George Calvert (1579 – 1632), the first Baron of Baltimore. Calvert believed in creating a settlement where Catholics and Protestants could coexist in relative peace and Maryland was hoped to be that place. The red and white design is the coat of arms of the Crossland line, Calvert’s mother’s family heraldry.