Landtag of Bavaria in the context of 2023 Bavarian state election

Bavarians are an ethnographic group of Germans native to Bavaria, a state in Germany. The group's dialect or language is known as Bavarian, native to Altbayern ("Old Bavaria"), roughly the territory of the historic Electorate of Bavaria in the 17th century.

Like the neighboring Austrians, Bavarians are traditionally Catholic. In much of Altbayern, membership in the Catholic Church remains above 70%,and the center-right Christian Social Union in Bavaria (successor of the Bavarian People's Party of 1919–1933) has traditionally been the strongest party in the Landtag, and also the party of all minister-presidents of Bavaria since 1946, with the single exception of Wilhelm Hoegner, 1954–1957.

The 2003 Bavarian state election was held on 21 September 2003 to elect the members to the 15th Landtag of Bavaria. The Christian Social Union (CSU) led by Minister-President Edmund Stoiber achieved the largest majority in German history, winning 69% of the seats in the Landtag. This election was the first and to date only time a single party won a two-thirds supermajority of seats in any German state parliament. The CSU also won its largest proportion of the popular vote since 1974, at 60.7%.

The election was marked by a major decline in turnout, falling by almost 13 points to 57%. As a result, despite achieving its best result in decades, the CSU won 230,000 votes fewer than it had in the 1998 election.

Ludwig III (Ludwig Luitpold Josef Maria Aloys Alfred; 7 January 1845 – 18 October 1921) was the last King of Bavaria, reigning from 1913 to 1918. Initially, he served in the Bavarian military as a lieutenant and went on to hold the rank of Oberleutnant during the Austro-Prussian War. He entered politics at the age of 18, as a member of the Bavarian parliament, and was a keen participant, supporting electoral reforms. Later in life, he served as regent and de facto head of state from 1912 to 1913, ruling for his cousin, Otto. After the Bavarian parliament passed a law allowing him to do so, Ludwig deposed Otto and assumed the throne for himself. He led Bavaria during World War I. His short reign was seen as championing conservative causes and he was influenced by the Catholic encyclical Rerum novarum.

After the German Revolution of 1918–1919, the German Empire was dissolved and the Weimar Republic was created. As a result of this revolution, the Bavarian throne was abolished along with the other monarchies of the German states, ending the House of Wittelsbach's 738-year reign over Bavaria. Fearing that he might be a victim of an assassination, Ludwig fled to Hungary, Liechtenstein and then Switzerland. He returned to Bavaria in 1920 and lived at Wildenwart Castle. Ludwig would die shortly after, when he was staying at Nádasdy Mansion in Sárvár.