It was introduced by law fully by 5 June 1950: Article 1 (2) The colours of the state are white and blue.The modern coat of arms was designed by Eduard Ege, following heraldic traditions, in 1946.

Bavaria was one of the stem duchies of East Francia and the Holy Roman Empire.

The House of Wittelsbach, which ruled in Bavaria for about eight centuries, used the coat lozengy from 1242, later quartering it with the lion of the Electoral Palatinate.

The first known coat of arms of the House of Wittelsbach was azure, a golden fess dancetty.

[5] Lit: Wilhelm Volkert; Die Bilder in den Wappen der Wittelsbacher (Wittelsbach und Bayern, Köln, 1980) In the eleventh century the counts of Kraiburg, a branch of the counts of Sponheim originating in what is today Rhenish Hesse, acquired land in Upper and Lower Bavaria.