Detail from the frontispiece of Christiern Pedersen's edition of Saxo Grammaticus's <i>Danorum Regum heroumque Historiae</i>, Paris, 1514.
Christiern Pedersen (due to the CP signature) or somebody associated with him. Illustration no younger than 1514.
c. 1514. Reproduction: 1882.
Image from Henry Petersen: <i>Et dansk Flag fra Unionstiden i Maria-Kirken i Lübeck</i>, Copenhagen: C. A. Reitzel, 1882, page 51. Own scan.