The Guns of August Addressed is prewar military planning, as done by the major powers in Europe. Included are the German Schlieffen plan, France's offensive Plan XVII, joint British and French arrangements, and Russia's approach to a future European war. "Outbreak" starts with a short introduction, which briefly mentions the event that triggered World War I. On June 28, 1914, in Sarajevo, Gavrilo Princip, a Serbian nationalist, assassinated the heir apparent to the throne of Austria-Hungary, the Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg. European-wide diplomacy and military preparations during July are then referenced. Chapters 6 to 9 commence with August
Archduchess Marie Anne of Austria of Parma, Ferdinand I of Austria, Archduchess Marie Caroline, Archduchess Caroline Ludovika of Austria, Archduke Johann Nepomuk of Austria, Archduchess Amalie Theresa of Austria, and Archduke Franz Karl of Austria. Her parents, Francis II, Holy Roman Emperor and Maria Theresa of Naples and Sicily, and her great-grandmother, Maria Theresa of Austria, are also buried there. Archduchess Marie Anne of Austria Marie Anne of Austria ("Maria Anna Franziska Theresia Josepha Medarde"; 8 June 1804 – 28 December 1858) was an Archduchess of Austria and the daughter of Franz II, Holy Roman Emperor and his second wife, Maria Theresa of Naples and