Hesse, Kurhessen, Greater Hesse & Hesse-Kassel

The Flag of Hesse-Kassel, in both Landgraviate (1567-1803), and Electorate (1803-1807, 1814-1866), as well as the Prussian Province of Kurhessen (1944-1945), and the German Provinces of Greater Hesse (1945-1946) and Hesse (1946- ).

Original Flag:
https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Flag_of_Hesse.svg/800px-Flag_of_Hesse.svg.png