March of Istria

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Istrian march (Mark Istrien) of the Holy Roman Empire about 1000, alongside the marches of Verona and Carniola (Krain), Croatia and the Republic of Venice

The March of Istria (or Margraviate of Istria) was originally a Carolingian frontier march covering the Istrian peninsula and surrounding territory conquered by Charlemagne's son Pepin of Italy in 789. After 1364, it was the name of the Istrian province of the Habsburg Monarchy, the Austrian Empire and Austria-Hungary.

History[edit]

The settlement area of the ancient Histri tribes had been conquered by the Roman Empire until 178 BC and was incorporated into the northeastern Venetia et Histria region of the Italia province under Emperor Augustus. Upon the Decline of the Roman Empire and the Migration Period, the Lombards under King Alboin from 568 onwards conquered Venetia, where they established the Duchy of Friuli, part of their Kingdom of Italy. The Istrian peninsula remained under Byzantine (Eastern Roman) influence, while South Slavic tribes (Croatians and Slovenes) settled in the east and north.

Aistulf, King of the Lombards from 749, attacked the remaining Byzantine territories in Italy and even threatened the Byzantine Papacy in Rome. As Pope Zachary expected no help from Constantinople, he forged an alliance with Pepin the Short, the powerful Mayor of the Palace of the Frankish kingdom north of the Alps, whom he legitimized as King of the Franks. In 755, Pepin invaded Italy and forced Aistulf under Frankish suzerainty. Pepin's son Charlemagne in 773/774 finally incorporated the Italian kingdom into the Carolingian Empire.

Carolingian march[edit]

Charlemagne at first attached the Istrian peninsula to the Lombard Duchy of Friuli, part of the Carolingian Kingdom of Italy under his son Pepin. Though officially a duchy, Friuli de facto was a march with a merely titular ducal dignity, from 776 ruled by Frankish appointees.

An Istrian margraviate itself first emerged following the death of Duke Eric of Friuli in the 799 Siege of Trsat on the Frankish border with Littoral Croatia. Istria was enfeoffed to the Frankish count Hunfrid, who also bore the title of a dux Foroiulanus. The original Carolingian march stretched from the Julian Alps and the Kras Plateau down to the Gulf of Kvarner. It was one of three marches, along with Friuli and Carantania, guarding Italy from the Avars, Slavs, and Magyars successively. In the first decade of the 9th century, Istria was ruled by one Duke John, nominally according to its ancient Byzantine customs, but in fact as a Frankish vassal. The region then had nine cities, Trieste foremost among them.

After King Pepin had made several attempts to conquer Venice on the Adriatic coast, his father Emperor Charlemagne under the 812 Treaty of Aix-la-Chapelle finally recognised the formal Byzantine control over the city alongside with Istria, at least its western coast. After this, it falls into obscurity, but perhaps the Byzantines never succeeded in re-establishing their government in the returned territories, if they were actually handed over. The remaining parts of Istria were probably eventually just re-integrated into the Carolingian duchy of Friuli.

When after the deposition of the last Friulian duke Baldric, Emperor Louis the Pious at the 829 Reichstag in Worms divided his vast duchy into four marches. Istria with the March of Friuli was ruled from Aquileia by Margrave Eberhard and his Unruoching descendants. It became part of Middle Francia after the 843 Treaty of Verdun, and was allotted to Emperor Louis II's Italian kingdom in 855. The Unruoching margrave Berengar of Friuli even succeeded Charles the Fat as King of Italy in 888.

Imperial march[edit]

After the German king Otto I had campaigned northern Italy under Berengar's grandson King Berengar II, in 952 he merged Friuli into the vast March of Verona, which he granted it to his brother Duke Henry I of Bavaria, who already controlled the adjacent Carinthian and Carniolan marches. After the deposition of Henry's son and successor Duke Henry the Wrangler in 976, Emperor Otto II separated Carinthia from the Bavaria as a duchy in its own right, ruled by Duke Henry the Younger who was also given suzerainty over the southeastern Bavarian marches, including Verona, Istria, Carniola and Styria.

There appear counts of Istria late in the 10th century, but Istria together with the March of Carniola was separated from the Carinthian duchy in 1040, when both were bestowed on the Thuringian Count Poppo of Weimar, heir by marriage to the last known Friulian margrave Weriand. The Carniolan margraves gradually acquired the northeastern territories of the peninsula, while the western and southern coast was gradually occupied by the Republic of Venice. The German king Henry IV nominally assigned the remaining march to the Patriarchate of Aquileia, the margravial title and the Istrian territories were however retained by Carniola. In 1173 the Hohenstaufen Emperor Frederick Barbarossa enfeoffed the Bavarian noble House of Andechs, who attached Istria to their Duchy of Merania. Aquileia regained Istria in 1209, when the Andechs margraves were banned due to alleged entanglement in the assassination of the German king, Frederick Barbarossa's son Philip of Swabia.

By mid-century most of the Istrian coast had been conquered by Venice. The patriarchs had ceased appointing margraves and had given the remaining interior of the peninsula into the direct control of their Vogt officials, the Counts of Görz. The Görz territories were finally acquired by the Habsburg archdukes of Austria in 1374, who since 1335 had held the Carniolan march. In 1382 they also gained control over the City of Trieste.

Habsburg Margraviate[edit]

Margraviate of Istria
Markgrafschaft Istrien (de)
Marchesato d’Istria (it)
Markgrofovija Istra (hr)
Mejna grofija Istra (sl)
Part of the Austrian Littoral
Crown land of the Austrian Empire (1861–1867)
Cisleithanian crown land of Austria-Hungary (1867–1918)

1849–1918
Flag Coat of arms
Flag Coat of arms
Location of Istria
Istrian margraviate (outlined in yellow),
Justus Perthes 1855
Capital Poreč (Parenzo)
Government Monarchy
Legislature Diet of Istria
History
 -  March Constitution 1849
 -  Crown land according to February Patent 1861
 -  Cisleithanian crown land 1867
 -  Disestablished 1918
 -  Ceded to Italy 1919

After the secular territory of the Patriarchs of Aquileia had been completed conquered by Venice in 1420, most of Istria belonged to La Serenissima. The Austrian House of Habsburg only held a small territory in the interior of the peninsula around Pazin (Mitterburg), which it administered from its Carniolan duchy. The Habsburg rulers nevertheless added the title of a "Margrave of Istria" to their other titles, persisting until the dissolution of the Austro-Hungarian monarchy in 1918.

Venetian Istria fell to the Habsburg Monarchy according to the 1797 Treaty of Campo Formio, was seized by Napoleon in the 1805 Peace of Pressburg as part of the Kingdom of Italy and the Illyrian Provinces and with the Kingdom of Illyria all of Istria was finally allotted to the Austrian Empire by the 1815 Congress of Vienna.

After the partition of the Illyrian kingdom in 1849, the Margravate of Istria became a subdivision of the Austrian Littoral crown land. It received considerable autonomy as a crown land in its own right with the establishment of the Diet of Istria at Poreč by the 1861 February Patent.

Margraves[edit]

Carolingian march

Margraviate re-established, held by the Counts of Weimar

House of Sponheim

Counts of Weimar-Orlamünde

  • Poppo II, 1096–1098, son of Ulric I, Margrave of Carniola since 1070
  • Ulric II, 1098–1107, brother, also Margrave of Carniola

House of Sponheim

House of Andechs

  • Berthold I, 1173–1188, also Margrave of Carniola
  • Berthold II, 1188–1204, son, also Margrave of Carniola, Duke of Merania (as Berthold IV) since 1183
  • Henry II, 1204–1228, son, also Margrave of Carniola
  • Otto I, 1228–1234, brother, also Margrave of Carniola, Duke of Merania since 1204, Count Palatine of Burgundy since 1211 (as Otto II)
  • Otto II, 1234–1248, also Margrave of Carniola, Duke of Merania and Count Palatine of Burgundy (as Otto III)

See also[edit]

Sources[edit]