Charles I of Habsburg-Lorraine (Persenbeug, August 17, 1887 – Funchal, April 1, 1922) was the last Emperor of Austria and King of Hungary (as Charles IV), the final sovereign of the House of Habsburg-Lorraine to rule the Austro-Hungarian Empire. His brief reign, from November 1916 to November 1918, coincided with the final phase of World War I and the collapse of the Empire.
Great-nephew of Emperor Francis Joseph I, Charles became heir to the throne under dramatic circumstances: the assassination of Archduke Franz Ferdinand in Sarajevo on June 28, 1914 placed him in direct line of succession. Upon the death of Francis Joseph on November 21, 1916, Charles ascended to the throne, inheriting an empire at war and riven by ever-deepening national tensions.
Charles I and Trieste
The bond between Charles I and Trieste is concentrated in the dramatic final months of the Empire. Trieste was the main port of Austria-Hungary, its only direct outlet to the Mediterranean, and during the Great War it lay less than thirty kilometers from the Isonzo front, effectively a city under siege.
On June 2, 1917, during the Tenth Battle of the Isonzo, Charles I visited Trieste and the Karst front. The Emperor was photographed in Piazza Grande (today Piazza Unità d'Italia), and images of the visit are preserved in the civic photographic archive of the Municipality of Trieste. Period footage documents the sovereign's passage through Postojna, Sežana, and Trieste. During his very presence in the city, an Italian aircraft dropped a bomb near the Canal Grande, killing a woman and a child — a tangible sign of the proximity of the conflict.
Peace attempts and the refusal to cede Trieste
As early as 1917, Charles I secretly initiated peace negotiations with France and Great Britain through his brothers-in-law Sixtus and Xavier of Bourbon-Parma (the so-called Sixtus Letters). During the talks, Italian Foreign Minister Sidney Sonnino demanded as a non-negotiable condition the cession of Trieste and Istria to Italy. Charles I categorically refused to surrender Trieste, and this was one of the main reasons for the failure of the negotiations. The affair became public in April 1918 when Clemenceau published the Emperor's autograph letters, triggering a severe diplomatic crisis.
The Manifesto of the Peoples and the fall
On October 16, 1918, in an extreme attempt to save the Empire, Charles I issued the Manifesto to My Faithful Austrian Peoples, envisioning the transformation of the Empire into a federal state. For Trieste and its territory, the manifesto reserved a special position, with an autonomous statute that recognized the city's uniqueness without assigning it to either the German-Austrian or the Slavic bloc.
The manifesto came too late. On November 3, 1918, an Italian flotilla entered the port of Trieste before a jubilant crowd, ending nearly two centuries of Habsburg rule. On November 11, 1918, Charles I signed a renunciation of participation in affairs of state — never formally pronouncing the word "abdication," believing he retained his dynastic rights.
Exile and beatification
Exiled first to Switzerland and then to Madeira after two failed restoration attempts in Hungary, Charles I died of pneumonia in Funchal on April 1, 1922, at just 34 years of age. On October 3, 2004, he was beatified by Pope John Paul II, the only modern sovereign raised to the altars by the Catholic Church.
With Charles I, the Habsburg era of Trieste came to a definitive close. His figure represents the final act of a centuries-long bond between the city and the House of Habsburg, begun with Charles VI in 1719 and concluded with the last emperor who refused to surrender the port of the Adriatic.