Carantania, also known as Carentania, was a Slavic principality that emerged in the second half of the 7th century, in the territory of present-day southern Austria and north-eastern Slovenia. It was the predecessor of the March of Carinthia, created within the Carolingian Empire in 889.
Great Moravia, or simply Moravia, was the first major state that was predominantly West Slavic to emerge in the area of Central Europe, possibly including territories which are today part of the Czech Republic, Slovakia, Hungary, Austria, Germany, Poland, Romania, Croatia, Serbia and Ukraine. The only formation preceding it in these territories was Samo's tribal union known from between 631 and 658 AD.
Tomislav was the first king of Croatia. He became Duke of Croatia c. 910 and was crowned king in 925, reigning until 928. During Tomislav's rule, Croatia forged an alliance with the Byzantine Empire against Bulgaria. Croatia's struggles with the First Bulgarian Empire eventually led to war, which culminated in the decisive Battle of the Bosnian Highlands in 926. In the north, Croatia often clashed with the Principality of Hungary; the state retained its borders and, to some extent, expanded with the disintegrated Lower Pannonia.
Ljudevit or Liudewit, often also Ljudevit Posavski, was the Duke of the Slavs in Lower Pannonia from 810 to 823. The capital of his realm was in Sisak. As the ruler of the Pannonian Slavs, he led a resistance to Frankish domination. Having lost the war against Franks, he fled to the south, presumably to Dalmatia, first to an unknown Serb župa, and then to the Croat ruler Ljudemisl, who treacherously killed him.
Višeslav or Vojislav, is the first Serbian ruler known by name, who ruled in c. 780. Serbia was a Slavic principality, subject to the Byzantine Empire, located in the western Balkans, bordering with Bulgaria in the east. Mentioned in the De Administrando Imperio (DAI) from the mid-10th century, Višeslav was a progenitor of the Serbian ruling family, known in historiography as the Vlastimirović dynasty. He was descended from the unnamed "Serbian prince" who led his people to the Dalmatia province and established hereditary rule under Byzantine suzerainty. The names of Višeslav's predecessors were not included in the DAI. The dynasty ruled the Principality of Serbia from the early 8th century until around 960.
Borna was the Duke of Croatia from c. 810 to 821 and vassal of the Frankish Empire. He resided in Nin and was the ruler of most of the Croats in northern Dalmatia.
Braslav was a prince who ruled the Slavs in Lower Pannonia, in a territory located mostly in modern-day Croatia, between 884 and 896 as a vassal of Arnulf of Carinthia. He participated in the Frankish–Moravian War (882–84) and the Frankish invasion of Moravia (891–92). He was last mentioned when he was entrusted Pannonia by Arnulf in order to secure the Frankish frontier against the Hungarians (896), who subsequently overran all of Pannonia and continued into Italy.
Pribina was a Slavic prince whose adventurous career, recorded in the Conversion of the Bavarians and the Carantanians, illustrates the political volatility of the Franco–Slavic frontiers of his time. Pribina was the first ruler of Slavic origin to build a Christian church on Slavic territory in Nitra, and also the first to accept baptism.
Kocelj was a ruler of the Slavs in Lower Pannonia. He was an East Frankish vassal titled comes (count), and is believed to have ruled between 861 or 864 and 876.
Ban of Croatia was the title of local rulers or office holders and after 1102, viceroys of Croatia. From the earliest periods of the Croatian state, some provinces were ruled by bans as a ruler's representative (viceroy) and supreme military commander. In the 18th century, Croatian bans eventually became the chief government officials in Croatia.
Baldric or Balderic (Bald[e]ricus) was the Duke of Friuli from 819, when he replaced Cadolah according to Thegan of Trier in his Vita Hludowici imperatoris, until 828, when he was removed from office: the last Duke of Friuli.
The March of Carinthia was a frontier district (march) of the Carolingian Empire created in 889. Before it was a march, it had been a principality or duchy ruled by native-born Slavic princes at first independently and then under Bavarian and subsequently Frankish suzerainty. The realm was divided into counties which, after the succession of the Carinthian duke to the East Frankish throne, were united in the hands of a single authority. When the march of Carinthia was raised into a Duchy in 976, a new Carinthian march was created. It became the later March of Styria.
The March of Pannonia or Eastern March was a frontier march of the Carolingian Empire, named after the former Roman province of Pannonia and carved out of the preceding and larger Avar March.
The Avar March was a southeastern frontier province of the Frankish Empire, established after successful Frankish campaigns and conquests of Avarian territories along the river Danube, to the east from the river Enns, in what is today Lower Austria and northwestern Hungary. Since the Frankish conquest in the late 8th century, there were several administrative changes in those regions. Territory along the river Danube, from the river Enns to the Vienna Woods, was ruled directly, as a frontier extension (march) of the Frankish Bavaria, while regions further to the east, up to the river Rába, were initially designated to remaining Avarian princes, under the Frankish supreme rule. During the 820s and 830s, additional administrative changes were made in the wider region of Frankish Pannonia, inhabited mainly by Pannonian Slavs. Territories of the remaining Avarian princes were fully incorporated, and Avars eventually disappeared from the region.
Vojnomir, Voynomir or Vonomir I was a Slavic military commander in Frankish service, the duke of Slavs in Lower Pannonia, who ruled from c. 790 to c. 800 or from 791 to c. 810 over an area that corresponds to modern-day Slavonia, Croatia.
The siege of Trsat was a battle fought over possession of the town of Trsat in Liburnia, near the Croatian–Frankish border. The battle was fought in the autumn of 799 between the defending forces of Dalmatian Croatia under the leadership of Croatian duke Višeslav, and the invading Frankish army of the Carolingian Empire led by Eric of Friuli. The battle was a Croatian victory, and the Frankish commander Eric was killed during the siege.
The Guduscani or Goduscani were a tribe whose location and origin on the territory of early medieval Croatia remains a matter of dispute. According to one hypothesis they were located around present-day Gacka (Lika), between upper Kupa river and the Dalmatian coast, or that were inhabitants around the river Guduča near the Bribir region.
Early Slavs settled in the eastern and southern parts of the former Roman province of Pannonia. The term Lower Pannonia was used to designate those areas of the Pannonian plain that lie to the east and south of the river Rába, with the division into Upper and Lower inherited from the Roman terminology.
The Duchy of Croatia was a medieval state that was established by White Croats who migrated into the area of the former Roman province of Dalmatia c. 7th century CE. Throughout its existence the Duchy had several seats – namely, Klis, Solin, Knin, Bijaći and Nin. It comprised the littoral – the coastal part of today's Croatia – except Istria, and included a large part of the mountainous hinterland as well. The Duchy was in the center of competition between the Carolingian Empire and the Byzantine Empire for rule over the area. Croatian rivalry with Venice emerged in the first decades of the 9th century and would continue through the following centuries. Croatia also waged battles with the Bulgarian Empire and with the Arabs; it also sought to extend its control over important coastal cities under the rule of Byzantium. Croatia experienced periods of vassalage to the Franks or to the Byzantines and of de facto independence until 879, when Duke Branimir was recognized as an independent ruler by Pope John VIII. The Duchy was ruled by the Trpimirović and Domagojević dynasties from 845 to 1091. Around 925, during the rule of Tomislav, Croatia became a kingdom.
Radbod was the East Frankish prefect of the Eastern March, the Bavarian frontier towards the Slavs, appointed in 833. He had been appointed the office after Louis the German's conquest in 828, and subsequent Christianization of the Moravians (828–33). In 833, according to the Conversio Bagoariorum et Carantanorum, a Slavic prince, Pribina, had been "driven across the Danube by Mojmir, duke of the Moravians", and fled to Radbod in East Francia around 833. Radbod introduced him to King Louis the German, who ordered that Pribina should be "instructed in the faith and baptized", and that he serve with his followers in Radbod's army. Before long, however, Radbod and Pribina fell out, and the latter, fearing for his life, fled with his son Koceľ to the First Bulgarian Empire, and then to Lower Pannonia ruled by a Slavic duke, Ratimir. Since Lower Pannonia was part of Radbod's prefecture, Ratimir's harboring of Pribina was tantamount to rebellion, therefore, in 838, Louis the German sent Radbod at the head of a large Bavarian army to crush Ratimir, but Pribina and his followers took refuge with the count of Carniola, Salacho. In short time the latter brokered a reconciliation between Radbod and Pribina, and Louis solved the ongoing instability by appointing Pribina as his faithful dux with lands in around the Zala river. Radbod held contacts with Rastislav, ruler of the Moravians, who had long posed a danger to Bavaria. According to the Annals of St-Bertin, in 853 Charles the Bald, king of West Francia, bribed the Bulgarians to ally with the Slavs and together attack Louis the German's kingdom. In the course of the Bulgarian–Moravian attack, Louis the German deposed Radbod in 854 for infidelity, after an uprising. Radbod then formed a rebel alliance with Rastislav. In 855, Rastislav (Rastiz) rebelled, and Carloman was made prefect in Radbod's place in 856. Carloman's 858 campaign forced Rastislav to make peace.
