Empress Elisabeth of Austria in the context of "Mayerling incident"

Kaiser (/ˈkaɪzər/ KY-zər; German pronunciation: [ˈkaɪzɐ]) is the title historically used by German and Austrian emperors. In German, the title in principle applies to rulers anywhere in the world above the rank of king (König). In English, the word kaiser is mainly applied to the emperors of the unified German Empire (1871–1918) and the emperors of the Austrian Empire (1804–1918). During the First World War, anti-German sentiment was at its zenith; the term kaiser—especially as applied to Wilhelm II, German Emperor—thus gained considerable negative connotations in English-speaking countries.

Especially in Central Europe, between northern Italy and southern Poland, between western Austria and western Ukraine and in Bavaria, Emperor Franz Joseph I is still associated with Der Kaiser (the emperor) today. As a result of his long reign from 1848 to 1916 and the associated Golden Age before the First World War, this title often has still a very high historical respect in this geographical area.

Charlotte of Mexico (French: Marie Charlotte Amélie Augustine Victoire Clémentine Léopoldine; Spanish: María Carlota Amelia Augusta Victoria Clementina Leopoldina; 7 June 1840 – 19 January 1927), known by the Spanish version of her name, Carlota, was by birth a princess of Belgium and member of the House of Wettin in the branch of Saxe-Coburg and Gotha (as such, she was also styled Princess of Saxe-Coburg and Gotha and Duchess in Saxony). As the wife of Archduke Maximilian of Austria, Viceroy of Lombardy–Venetia and later Emperor of Mexico, she became Archduchess of Austria (in 1857) and Empress of Mexico (in 1864). She was the daughter, granddaughter, sister, sister in-law, cousin and wife of reigning or deposed sovereigns throughout Europe and Mexico.

From the beginning of her marriage, she feuded with Empress Elisabeth in Vienna, and was glad when her husband was posted to Italy as Viceroy of Lombardy–Venetia. At this time, he was selected by the Emperor Napoleon III as a figurehead for his proposed French empire in Mexico, and Charlotte overcame her husband's doubts about the plan. Maximilian and Charlotte duly arrived in Mexico City in 1864, but their reign lasted little more than three years. She assisted her husband, who let her rule as regent during his absences from Mexico City, for which reason she is considered the first woman to rule in the Americas. When Napoleon III ordered the withdrawal of French military aid intended to support Maximilian, the situation of the Mexican imperial couple became untenable.

Franz Joseph I or Francis Joseph I (German: Franz Joseph Karl [fʁants ˈjoːzɛf ˈkaʁl]; Hungarian: Ferenc József Károly [ˈfɛrɛnt͡s ˈjoːʒɛf ˈkaːroj]; 18 August 1830 – 21 November 1916) was Emperor of Austria, King of Hungary, and the ruler of the other states of the Habsburg monarchy from 2 December 1848 until his death in 1916. In the early part of his reign, his realms and territories were referred to as the Austrian Empire, but in 1867 they were reconstituted as the dual monarchy of Austria-Hungary. From 1 May 1850 to 24 August 1866, he was also president of the German Confederation.

In December 1848, Franz Joseph's uncle Emperor Ferdinand I abdicated the throne at Olomouc, as part of Minister President Felix zu Schwarzenberg's plan to end the Hungarian Revolution of 1848. Franz Joseph then acceded to the throne. In 1854, he married his first cousin Duchess Elisabeth in Bavaria, with whom he had four children: Sophie, Gisela, Rudolf, and Marie Valerie. Largely considered to be a reactionary, Franz Joseph spent his early reign resisting constitutionalism in his domains. The Austrian Empire was forced to cede its influence over Tuscany and most of its claim to Lombardy–Venetia to the Kingdom of Sardinia, following the Second Italian War of Independence in 1859 and the Third Italian War of Independence in 1866. Although Franz Joseph ceded no territory to the Kingdom of Prussia after the Austrian defeat in the Austro-Prussian War, the Peace of Prague (23 August 1866) settled the German Question in favour of Prussia, which prevented the unification of Germany from occurring under the House of Habsburg.

The Austro-Hungarian Compromise of 1867 (German: Ausgleich, Hungarian: Kiegyezés) established the dual monarchy of Austria-Hungary, which was a military and diplomatic alliance of two sovereign states. The Compromise only partially re-established the former pre-1848 sovereignty and status of the Kingdom of Hungary, being separate from, and no longer subject to, the Austrian Empire. The compromise put an end to the 18-year-long military dictatorship and absolutist rule over Hungary which Emperor Franz Joseph had instituted after the Hungarian Revolution of 1848. The territorial integrity of the Kingdom of Hungary was restored. The agreement also restored the old historic constitution of the Kingdom of Hungary.

Hungarian political leaders had two main goals during the negotiations. One was to regain the traditional status (both legal and political) of the Hungarian state, which had been lost after the Hungarian Revolution of 1848. The other was to restore the series of reform laws (the so-called April Laws) of the revolutionary parliament of 1848, which were based on the 12 points that established modern civil and political rights and economic and societal reforms in Hungary. The April Laws of the Hungarian revolutionary parliament (with the exception of the laws based on the 9th and 10th points) were restored by Franz Joseph.

Herostratus, or Eratostratus, was an arsonist who destroyed the Temple of Artemis in an attempt to achieve infamy. Considered an early case of terrorism, his crime prefigured modern terrorist acts, including the assassination of Empress Elisabeth of Austria and the September 11 attacks. His name has become an eponym for someone who commits a criminal act solely to become famous, and the Herostratus syndrome afflicts "people who perpetrate odious attacks for the sake of infamy."

An obscure character, Herostratus burned down the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World, in 356 BCE. He was swiftly arrested and tortured to death, during which he confessed his intentions: to gain everlasting fame. The arson prompted the passing of a damnatio memoriae law barring anyone from mentioning his name, although many ancient writers, including one contemporary of the arson, documented him. While Herostratus is thought to have been spurred on by resentment at what he considered societal injustice, his exact motives are not known with any certainty.

Archduchess Sophie of Austria (5 March 1855 – 29 May 1857) was the first child of Emperor Franz Joseph I and Empress Elisabeth of Austria. She died aged two.

Archduchess Gisela Louise Marie of Austria (12 July 1856 – 27 July 1932) was the second daughter and eldest surviving child of Emperor Franz Joseph I and Empress Elisabeth of Austria. She became a Princess of Bavaria through her marriage to her second cousin, Leopold.

The Archduchess was born on 12 July 1856, the second child of Franz Joseph I of Austria and Elisabeth in Bavaria. She was named Gisella Louise Marie; the name Gisella was taken after Queen Gisela of Hungary, wife of Stephen I, first Christian Hungarian king. Although christened Gisella, she only ever wrote her name with one L. Just like her elder sister Archduchess Sophie and her brother Crown Prince Rudolf, Gisela was raised by her paternal grandmother, Archduchess Sophie of Austria. Of a sober nature like her father, she kept a reserved attitude towards her mother. She had a very close relationship with her brother, whose suicide affected her greatly.

Rudolf, Crown Prince of Austria (Rudolf Franz Karl Josef; 21 August 1858 – 30 January 1889) was the only son and third child of Emperor Franz Joseph I and Empress Elisabeth of Austria. He was heir apparent to the imperial throne of the Austro-Hungarian Empire from birth. In 1889, he died in a suicide pact with his mistress Baroness Mary Vetsera at the Mayerling hunting lodge. The ensuing scandal made international headlines.