A red-yellow bicolour was introduced as the flag of the Grand Duchy of Baden (1806–1918) in 1871. This was replaced with a yellow-red-yellow triband in 1891. Following the abolition of the monarchy at the end of World War I, the Republic of Baden was established, which continued to use this triband flag. After the Nazi Party came to power in Germany in 1933, the individual German states and their symbols were eventually suppressed. After World War II, the southern half of Baden became part of the French Occupation Zone and established as South Baden. South Baden used the yellow-red-yellow triband as its flag until the state's disestablishment in 1952, when it became part of the modern German state of Baden-Württemberg.
- "Badische Fahne: Liebe zur Heimat, Rebellion oder Komplex - woher kommt der Flaggenstolz?". ka-news.de (in German). 14 July 2018. Retrieved 7 July 2020. CS1 maint: discouraged parameter (link)
- "Baden-Württemberg". The Columbia Encyclopedia.
- "Happy-End im Flaggen-Streit: Badische Fahne darf weiter auf dem Schloss wehen". ka-news.de (in German). 2018-11-12. Retrieved 7 July 2020. CS1 maint: discouraged parameter (link)