1634: The Bavarian Crisis is a novel in the alternate history 1632 series, written by Virginia DeMarce and Eric Flint as sequel to Flint's novella "The Wallenstein Gambit"; several short stories by DeMarce in The Grantville Gazettes; 1634: The Ram Rebellion; and 1634: The Baltic War. The novel's first draft was completed in 2005, before work on The Baltic War began. Many chapters of that "early draft version" were available on line, but the final production reached print on October 1, 2007.

Archduchess Maria Anna of Austria, was a German regent, Electress of Bavaria by marriage to Maximilian I, Elector of Bavaria, and co-regent of the Electorate of Bavaria during the minority of her son Ferdinand Maria, Elector of Bavaria from 1651 to 1654.