There is a second miniature identical to this one in the Museum, and at least six others are known. They are based on an oval engraving of 1641 by Wenceslaus Hollar (1607-1677). The technical uniformity of the group suggests that they were embroidered professionally. They may have been made for sale during the Civil War of 1642–1651, or perhaps later, as a memento of the dead king, Charles I, who was executed in 1649.