Holy Roman Empire

Imperial Banner of the Holy Roman Empire (962-1806), it was adopted circa 1430.

Made by MrNazar

Original Flag:
https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Banner_of_the_Holy_Roman_Emperor_with_haloes_%281400-1806%29.svg/640px-Banner_of_the_Holy_Roman_Emperor_with_haloes_%281400-1806%29.svg.png

German Empire (Russian Client State)

Flag of the German Empire as a Russian client state. under the Romanov dynasty.

German Empire

Flag of the German Empire (1871-1918) and (due to obvious reasons) the Flag of Nazi Germany in Hearts of Iron.

Original Flag:

https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Flag_of_the_German_Empire.svg/640px-Flag_of_the_German_Empire.svg.png

German War Flag (1903-1918)

War Flag of the German Empire from 1903-1918, and reused in 1921. It served as the state flag for the German Empire in Kaiserreich.

Original Flag:
https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/War_Ensign_of_Germany_1903-1918.svg/640px-War_Ensign_of_Germany_1903-1918.svg.png

German Empire (Habsburg)

Another Kaiserreich design, it is the German Empire under the Habsburg Dynasty.