File talk:Flag of the Grand Duchy of Lithuania (1403–1410).svg

Please note this image is NOT GDL flag. It's a reconstruction (!) of the banner used by Vitautas army in the Grundwald battle 1410. — Preceding unsigned comment added by Azgar (talk • contribs)

Is there a source that shows the image of the flag of the Grand Duchy of Lithuania (not a separate regiment) with such a shape (geometry) and such colors? Or is it the author's fantasy? --Лобачев Владимир (talk) 13:22, 17 December 2021 (UTC)