archon (ἄρχων)
Časlav crop.jpg
Prince of Serbia
Reignc. 927 – c. 960[b]
Successorpossibly Tihomir[c]
Bornbefore 896
Preslav, Bulgaria
Died960 (aged about 65)
Sava banks
Full name
Časlav Klonimirović Vlastimirović[a]
DynastyVlastimirović dynasty
ReligionChalcedonian Christian

Časlav (Greek: Τζεέσθλαβος, Serbian Cyrillic: Часлав[a] ; c. 890s – 960) was Prince of the Serbs from c. 927 until his death in c. 960.[b] He significantly expanded the Serbian Principality when he managed to unite several Slavic tribes, stretching his realm over the shores of the Adriatic Sea, the Sava river and the Morava valley. He successfully fought off the Magyars, who had crossed the Carpathians and ravaged Central Europe, when they invaded Bosnia. Časlav is remembered, alongside his predecessor Vlastimir, as founders of Serbia in the Middle Ages.

Časlav was the son of Klonimir, a son of Strojimir who ruled as co-prince in 851–880. He belongs to the first Serbian dynasty, the Vlastimirovićs (ruling since the early 7th century), and is the last known ruler of the family. His mother was a Bulgarian noblewoman chosen as wife of Klonimir by Boris I himself.


After the death of Prince Vlastimir, Serbia was an oligarchy ruled by his three sons:[1] Mutimir, Gojnik and Strojimir, although Mutimir, the eldest, had supreme rule.[2]

In the 880s, Mutimir seized the throne for himself, exiling his brothers and Klonimir, who was Strojimir's son, to the Bulgar Khanate; the court of Boris I of Bulgaria.[1] This was most likely due to treachery.[2] Petar, the son of Gojnik, was kept at the Serbian court of Mutimir for political reasons,[2] but he soon fled to Croatia.[1]

When Mutimir died, his son Pribislav inherited the rule, but he only ruled for a year; Petar returned and defeated him in battle and seized the throne; Pribislav fled to Croatia with his brothers Bran and Stefan.[1] Bran was defeated, captured and blinded (blinding was a Byzantine tradition that meant to disqualify a person to take the throne[3]). In 896, Klonimir returned from Bulgaria, backed by Boris I, taking the important stronghold Destinikon. Klonimir was defeated and killed.[4]

The Byzantine–Bulgarian Wars made de facto the First Bulgarian Empire the most powerful Empire of Southeastern Europe. The Bulgarians won after invading at the right time, they met little resistance in the north because of the Byzantines fighting the Arabs in Anatolia.[5]

Early life

Časlav was born in the 890s (before 896) in Preslav, the capital of the First Bulgarian Empire, growing up at the court of Simeon I.[6] His father was Klonimir. His mother was a Bulgarian noblewoman.

In 924, Časlav was sent to Serbia with a large Bulgarian army.[7] The army ravaged a good part of Serbia, forcing Zaharija, who at the time was the prince of Serbia, to flee to Croatia.[7] Symeon summoned all the Serbian dukes to pay homage to their new Prince, but instead of instating Časlav, he took them all captive, annexing Serbia.[7] Bulgaria now considerably expanded its borders; now neighbouring their powerful ally Michael of Zahumlje and Croatia, where Zaharija was exiled and soon died.[7] Croatia at this time was ruled by the most powerful monarch in Croatian history, Tomislav.[7]


Bulgarian rule was not popular, many Serbs fled to Croatia and Byzantium.[8] After the death of Simeon (927) Časlav and four friends[9] escaped to Serbia.[8] Časlav found popular support and restored the state, many exiles quickly returned.[8] He immediately submitted to Byzantine overlordship of Romanos I Lekapenos and gained financial and diplomatic support for his efforts.[8] He maintained close ties with Byzantium throughout his whole reign.[8] Byzantine influence (Byzantine church in particular) greatly increased in Serbia, Orthodox influences from Bulgaria as well.[8] The period was crucial to the future Christian demonym (Orthodox versus Catholic), as ties formed in this era were to have great importance on how the different Slavic churches would line up when they would split (Great Schism, 1054).[8] Many scholars have felt that the Serbs, being in the middle of the Roman and Orthodox jurisdiction, could have been either way, unfortunately information on this era and region is scarce.[8]

He enlarged Serbia, uniting the tribes of Bosnia, Herzegovina, Old Serbia and Montenegro (incorporated Zeta, Pagania, Zahumlje, Travunia,[6] Konavle, Bosnia and Rascia into Serbia, "ι Σερβλια").[10] He took over regions previously held by Michael of Zahumlje, who disappeared from sources in 925.[6]

War with Magyars and death

Execution of Časlav.

The Magyars had settled in the Carpathian basin in 895.[11] In the Byzantine-Bulgarian Wars, Emperor Leo had employed the Magyars against the Bulgars in 894.[11] In the years following, the Magyars mainly concentrated on the lands to the west of their realm.[11] In 934 and 943 the Magyars raided far into the Balkans, deep into Byzantine Thrace.[11]

According to CPD, the Magyars led by Kisa invaded Bosnia, and Časlav hurried and encountered them at the banks of river Drina.[9] The Magyars were decisively defeated, with Kisa being slain by voivode Tihomir.[9] Časlav married off his daughter to Tihomir, as a result of his courage and slaying of the Magyar leader. Kisa's widow requested from the Magyar leaders to give her an army for vengeance.[9] With an "unknown number" of troops, the widow returned and surprised Časlav at Syrmia.[9] In the night, the Magyars attacked the Serbs, captured Časlav and all of his male relatives.[9] On the command of the widow, all of them were bound by their hands and feet and thrown into the Sava river.[9] The events are dated to around 960[9] or shortly thereafter, as De Administrando Imperio does not mention this event.


Map of Theme Sirmium within Byzantine Empire in 1045.

After Časlav's death the realm crumbled, local nobles restored the control of each province, and according to the 'CPD', his son-in-law Tihomir ruled Raška (region).[12] The written information about the first dynasty ends with the death of Časlav.[9]

The Catepanate of Ras is established between 971–976, during the rule of John Tzimiskes (r. 969–976).[13] A seal of a strategos of Ras has been dated to Tzimiskes' reign, making it possible for Tzimiskes' predecessor Nikephoros II Phokas to have enjoyed recognition in Rascia.[14][15] The protospatharios and katepano of Ras was a Byzantine governor named John.[16] Data on the katepano of Ras during Tzimiskes' reign is missing.[17] Byzantine military presence ended soon thereafter with the wars with Bulgaria, and was re-established only c. 1018 with the short-lived Theme of Sirmium, which however did not extend much into Rascia proper.[14] Bosnia emerges as a state after the death of Časlav.[18]

In the 990s, Jovan Vladimir emerges at the most powerful Serbian noble. With his court centered in Bar on the Adriatic coast, he had much of the Serbian Pomorje ('maritime') under his control including Travunia and Zachlumia. His realm may have stretched west- and northwards to include some parts of the Zagorje ('hinterlands', inland Serbia and Bosnia) as well. Cedrenus calls his realm "Trymalia or Serbia",[19] according to Radojicic and Ostrogorski, the Byzantines calls Zeta – Serbia, and its inhabitants Serbs.[20] Vladimir’s pre-eminent position over other Slavic nobles in the area explains why Emperor Basil II approached him for an anti-Bulgarian alliance. With his hands tied by war in Anatolia, Emperor Basil required allies for his war against Tsar Samuel, who had much of Macedonia. In retaliation, Samuel invaded Duklja in 997, and pushed through Dalmatia up to the city of Zadar, incorporating Bosnia and Serbia into his realm. After defeating Vladimir, Samuel reinstated him as a vassal Prince.


Stevan Sremac (1855–1906) authored Veliki župan Časlav in 1903.[21]


According to the Chronicle of the Priest of Duklja, Časlav had one daughter:[12]

See also


  1. ^ Name: The first attestation of his name is the Greek Tzeésthlabos (Τζεέσθλαβος), in Latin Caslavus, in Serbian Časlav. He was a descendant of Vlastimirović, his father was Klonimir, hence, according to the contemporary naming culture, his name was Časlav Klonimirović Vlastimirović.
  2. ^ Reign [and death]: Ćorović dates his accession to 927 or shortly thereafter,[9] Ostrogorsky to 927 or 928, supported by Fine.[8] Ćorović dates his death to around 960,[9] as does Fine.[8]
  3. ^ Tihomir: The only mention of Tihomir is taken from the Chronicle of the Priest of Doclea. Various inaccurate and wrong claims make it an unreliable source, the majority of modern historians conclude that it is mainly fictional, or wishful thinking, pointing at the religious tone of the region and "author" itself. One of the main controversies lies in the fact that the "Antivari Archepiscopate" did not exist between 1142 and 1198 – at which time [supposedly], Grgur, the author, was Archbishop. The work enumerates the Serbian rulers mentioned in De Administrando Imperio, but contradict the forming and divisions of the South Slavs. It nevertheless gives a unique sight into South Slavic history. The oldest copies of the manuscript date to the 17th century, thereof claims of dubious status.


  1. ^ a b c d Fine 1991, p. 141.
  2. ^ a b c Đekić 2009.
  3. ^ Longworth, Philip (1997), The making of Eastern Europe: from prehistory to postcommunism (1997 ed.), Palgrave Macmillan, p. 321, ISBN 0-312-17445-4
  4. ^ Fine 1991, p. 154.
  5. ^ Theophanes Continuatus, p. 312., cited in Vasil'ev, A. (1902) (in Russian). Vizantija i araby, II. pp. 88, p. 104, pp. 108–111
  6. ^ a b c The entry of the Slavs into Christendom, p. 209
  7. ^ a b c d e Fine 1991, p. 153.
  8. ^ a b c d e f g h i j Fine 1991, p. 159.
  9. ^ a b c d e f g h i j k Srbi između Vizantije, Hrvatske i Bugarske;
  10. ^ Fine 1991, p. 160.
  11. ^ a b c d Stephenson, p. 39
  12. ^ a b c Живковић 2006, p. 57.
  13. ^ GK, Abstract: "the establishment of catepanate in Ras between 971 and 976"
  14. ^ a b Stephenson, Paul. The Legend of Basil the Bulgar-slayer. p. 42.
  15. ^ Paul Magdalino, Byzantium in the year 1000, p. 122
  16. ^ Academia, 2007, Byzantinoslavica, Volumes 65–66, p. 132
  17. ^ Krsmanović 2008, p. 189.
  18. ^ Ćirković 2004, p. 40–41.
  19. ^ Cedrenus II, col. 195.
  20. ^ Nikola Banasevic, Letopis popa Dukqanina i narodna predawa, p. 79, Document
  21. ^ Stevan Sremac (1903). Veliki župan Časlav. Izd. Matice srpske.


Primary sources
  • Moravcsik, Gyula, ed. (1967) [1949]. Constantine Porphyrogenitus: De Administrando Imperio (2nd revised ed.). Washington D.C.: Dumbarton Oaks Center for Byzantine Studies.
  • Constantine VII Porphyrogenitus (1830). De Ceremoniis (Reisky, J. ed.). Washington D.C.: Dumbarton Oaks Center for Byzantine Studies.
  • Шишић, Фердо, ed. (1928). Летопис Попа Дукљанина (Chronicle of the Priest of Duklja). Београд-Загреб: Српска краљевска академија.
  • Кунчер, Драгана (2009). Gesta Regum Sclavorum. 1. Београд-Никшић: Историјски институт, Манастир Острог.
  • Живковић, Тибор (2009). Gesta Regum Sclavorum. 2. Београд-Никшић: Историјски институт, Манастир Острог.
Secondary sources
  • Bury, John B. (1912). A History of the Eastern Empire from the Fall of Irene to the Accession of Basil I. (A.D. 802-867). London: MacMillan.
  • Ćirković, Sima (2004). The Serbs. Malden: Blackwell Publishing.
  • Đekić, Đ (2009). "Why did prince Mutimir keep Petar Gojnikovic?" (PDF). Teme, vol. 33, no. 2, pp. 683–688.
  • Ferjančić, Božidar (1997). "Basile I et la restauration du pouvoir byzantin au IXème siècle" [Vasilije I i obnova vizantijske vlasti u IX veku]. Zbornik radova Vizantološkog instituta (in French). Belgrade (36): 9–30.
  • Ferjančić, Božidar (2007). Vizantijski izvori za istoriju naroda Jugoslavije II (fototipsko izdanje originala iz 1959 ed.). Belgrade. pp. 46–65. ISBN 978-86-83883-08-0.
  • Fine, John Van Antwerp Jr. (1991) [1983]. The Early Medieval Balkans: A Critical Survey from the Sixth to the Late Twelfth Century. Ann Arbor, Michigan: University of Michigan Press.
  • Krsmanović, Bojana (2008). The Byzantine Province in Change: On the Threshold Between the 10th and the 11th Century. Belgrade: Institute for Byzantine Studies.
  • Mijatovic, Cedomilj (2007) [1908]. Servia and the Servians. Cosimo, Inc. ISBN 1-60520-005-0.
  • Ostrogorsky, George (1956). History of the Byzantine State. Oxford: Basil Blackwell.
  • Runciman, Steven (1930). A History of the First Bulgarian Empire. London: G. Bell & Sons.
  • Runciman, Steven (1988) [1929]. The Emperor Romanus Lecapenus and His Reign: A Study of Tenth-Century Byzantium. Cambridge: Cambridge University Press.
  • Stephenson, Paul (2000). Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900–1204. Cambridge: Cambridge University Press.
  • Vlasto, Alexis P. (1970). The Entry of the Slavs into Christendom: An Introduction to the Medieval History of the Slavs. Cambridge: Cambridge University Press.
  • Живковић, Тибор (2002). Јужни Словени под византијском влашћу 600-1025 (South Slavs under the Byzantine Rule 600-1025). Београд: Историјски институт САНУ, Службени гласник.
  • Живковић, Тибор (2006). Портрети српских владара: IX-XII век (Portraits of Serbian Rulers: IX-XII Century). Београд: Завод за уџбенике и наставна средства.
  • Živković, Tibor (2007). "The Golden Seal of Stroimir" (PDF). Historical Review. Belgrade: The Institute for History. 55: 23–29.
  • Živković, Tibor (2008). Forging unity: The South Slavs between East and West 550-1150. Belgrade: The Institute of History, Čigoja štampa.
  • Živković, Tibor (2013a). "On the Baptism of the Serbs and Croats in the Time of Basil I (867–886)" (PDF). Studia Slavica et Balcanica Petropolitana (1): 33–53.
  • Živković, Tibor (2013b). "The Urban Landcape of Early Medieval Slavic Principalities in the Territories of the Former Praefectura Illyricum and in the Province of Dalmatia (ca. 610-950)". The World of the Slavs: Studies of the East, West and South Slavs: Civitas, Oppidas, Villas and Archeological Evidence (7th to 11th Centuries AD). Belgrade: The Institute for History. pp. 15–36.

External links

  • Steven Runciman, A History of the First Bulgarian Empire, London 1930.
  • Ćorović, Vladimir (2001). "Istorija srpskog naroda".
Born: 896 Died: 960
Regnal titles
Preceded by
Prince of Serbia
Succeeded by
as Prince of Rascia
Title next held by
Jovan Vladimir
as Prince of Serbs
and Duklja (990)