The borders of the historic Carniola region had varied over the centuries. From the time of the duchy's establishment, it was located in the southeastern periphery of the Holy Roman Empire, where the Gorjanci Mountains and the Kolpa River formed the border with the Kingdom of Croatia.
In its final extent, re-established in 1815,[1] the duchy had an area of 9,904 square kilometres (3,824 sq mi).[2] In 1914, before the beginning of World War I, it had a population of a little under 530,000 inhabitants.[1]
Until 1860, these sub-regions coincided with the districts (Kreise) of Ljubljana, Novo Mesto and Postojna. They were later divided into smaller units, called political (or administrative) districts (German: Bezirkshauptmannshaft, Slovene: okrajno glavarstvo). Between 1861 and 1918, Carniola was divided into eleven districts consisting of 359 municipalities (German: Ortsgemeinde, Slovene: občina), with the provincial capital serving as the residence of the imperial governor (Landeshauptmann). The districts were: Kamnik, Kranj, Radovljica, the neighbourhood of Ljubljana, Logatec, Postojna, Litija, Krško, Novo Mesto, Črnomelj, and Kočevje. The political districts were in turn divided into 31 judicial circuits (German: Gerichtsbezirk, Slovene: sodnijski okraj).
Albert's son Rudolf IV of Austria, "the Founder", in the course of his Privilegium Maius, awarded himself the title of a "Duke of Carniola" in 1364—though without consent by the Holy Roman Emperor. Rudolph also founded the town of Novo Mesto in Lower Carniola, then named Rudolphswerth. After his death, as a result of the quarrels between his younger brothers Albert III and Leopold, Carniola by the 1379 Treaty of Neuberg became part of Inner Austria ruled from Graz by Leopold, ancestor of the Habsburg Leopoldian line. In 1457, the Inner Austrian territories were re-united with the Archduchy of Austria under the rule of the Habsburg Emperor Frederick III. When Frederick's descendant, Emperor Ferdinand I, died in 1564, Carniola was separated again as part of Inner Austria under the rule of Ferdinand's son Archduke Charles II. Charles' son, Emperor Ferdinand II, inherited all the dynasty's lands in 1619 and the duchy formed a constituent part of the Habsburg monarchy ever since.
In the late 15th century, as part of the Habsburg westward expansion, the Duchy of Carniola acquired many new territories: Idrija (previously part of Friuli), Duino and the surrounding parts of the Karst Plateau, Kastav, Opatija, and the interior areas of Istria, centered around Pazin. It also had nominal control over the port of Rijeka, which however de facto remained an autonomous city; in 1717 it was officially placed under direct imperial rule and in 1776 it was transferred to Hungary. In the 19th century, these areas (with the exception of Idrija) were incorporated in the Austrian Littoral, and Carniola thus became a landlocked region once again.
After the disestablishment of the Illyrian Kingdom in 1849, the Duchy of Carniola was constituted by rescript of 20 December 1860, and by imperial patent of 26 February 1861 (February Patent), modified by legislation of 21 December 1867, granting power to the Carniolan Landtag (or Carniolan Diet - estates' assembly) to enact all laws not reserved to the Imperial Council in Vienna, at which it was represented by eleven delegates, of whom two elected by the landowners, three by the cities, towns, commercial and industrial boards, five by the village communes, and one by a fifth curia by secret ballot, every duly registered male twenty-four years of age had the right to vote. The home legislature consisted of a single chamber of thirty-seven members, among whom the prince-bishop sat ex-officio. The emperor convened the legislature, and it was presided over by the k. k. Landeshauptmann (president of the Carniolan Diet – Landtag and its executive board – Landesausschuss). The landed interests elected ten members, the cities and towns eight, the commercial and industrial boards two, the village communes sixteen. The business of the chamber was restricted to legislating on agriculture, public and charitable institutions, administration of communes, church and school affairs, the transportation and housing of soldiers in war and during manoeuvres, and other local matters. The land budget of 1901 amounted to 3,573,280 crowns ($714,656).
The Austrian Imperial-Royal government was represented by the Imperial-Royal president (k. k. Landespräsident or governor), appointed by the emperor, and the Imperial-Royal Government (k. k. Landesregierung) in Ljubljana. In the majority of other Austrian crown lands these were known as Imperial-Royal Lieutenant (k. k. Statthalter) and Imperial-Royal Lieutenancy (k. k. Statthalterei).
The coat of arms of Carniola dates back to the 13th century, when it most probably evolved as a combination of the coats of arms of the Bavarian counts of Andechs in the Duchy of Merania (eagle) and the Rhenish House of Sponheim in Carinthia (red-white checkerboard). The eagle is also featured in the seal of King Ottokar II of Bohemia in his capacity as ruler of the Carniolan march in 1269. In 1463 Emperor Frederick III, having prevailed against the claims raised by his brother Albert VI of Austria, added the Imperial crown to the eagle and replaced the white in the shield and the checkered crescent with gold. In 1836 Emperor Ferdinand I of Austria restored the original white color to the shield and recognized the white-blue-red combination as the official Carniolan color scheme.
Under the Habsburg rule the white, blue and red from the Carniolan coat of arms (the shield, the eagle and the crescent) were confirmed as the official flag colors of the crownland in 1848. Since the Duchy of Carniola was the main Slovene-populated region of the Austrian Empire, the color scheme was subsequently accepted as the generic Slovene national tricolor by the inhabitants of other Slovene Lands.
As for the coat of arms, it was abandoned after 1918 with the passing of the Duchy of Carniola. The blue eagle of Carniola was, however, briefly resurrected from 1943 to 1945 as the symbol of the Slovenian auxiliary Axis forces, the Slovene Home Guard. It was also used in the Yugoslav Karađorđević dynasty coat-of-arms in the interwar period (and was replaced in the state coat-of-arms of the Kingdom of Yugoslavia by the three stars of the medieval counts of Celje).
The insignia of the Duchy of Carniola have had an important and lasting impact on Slovene national symbols. Thus, the white-blue-red combination of the flag of the Duchy of Carniola is in use today as the official color scheme of the flag of the Republic of Slovenia. The Slovenian coat of arms is also a heraldic composite, incorporating the stars of the counts of Celje, the Carniolan colors and the silhouette of the Slovene national symbol, Mount Triglav.
^Perko, Drago; Orožen Adamič, Milan, eds. (1998). Slovenija – pokrajine in ljudje [Slovenia – Landscapes and People] (in Slovenian). Mladinska knjiga. p. 16. ISBN9788611150338.
^ abA.J.P. Taylor, The Habsburg Monarchy 1809–1918, 1948: Serbian edition: A. Dž. P. Tejlor, Habzburška monarhija 1809–1918, Beograd, 2001, page 302.