Prosigoj was a 9th-century Serbian Prince (Knez

KNEZ

Knez may refer to:* Knez , translated duke or prince, used in medieval Slavic countries such as Croatia, Serbia and Slovenia* Knez , a South Slavic surname* Knez , the stage name of a Montenegrin singer Nenad Knežević...

) that ruled the Serbian Principality (Rascia

Rascia

Rascia was a medieval region that served as the principal province of the Serbian realm. It was an administrative division under the direct rule of the monarch and sometimes as an appanage. The term has been used to refer to various Serbian states throughout the Middle Ages...

) from 822 to 836.

Biography

He was the son of Radoslav

Radoslav of Serbia

Radoslav was a Serbian Prince who ruled over the Serbs from 800 to 822, he succeeded his father Višeslav who united the Serbian tribes, resulting in the formation of Raška in the 8th century...

. Prosigoj or his father was the ruler of Serbia during the uprisings (819-822) of Ljudevit Posavski

Ljudevit Posavski

Ljudevit Posavski was a Croatian Duke of Pannonian Croatia from 810 to 823. The capital of his realm was in Sisak. As the ruler of the Pannonian Slavs, he led an unsuccessful resistance to Frankish domination. He held close ties with the Carantanian and Carniolan tribes and with the Serbian tribe...

 against the Franks. According to the Royal Frankish Annals

Royal Frankish Annals

The Royal Frankish Annals or Annals of the Kingdom of the Franks ,are annals covering the history of early Carolingian monarchs from 741 to 829. Their composition seems to have soon been taken up at court, providing them with markedly official character...

, in 822, Ljudevit went from his seat in Sisak

Sisak

Sisak is a city in central Croatia. The city's population in 2011 was 33,049, with a total of 49,699 in the administrative region and it is also the administrative centre of the Sisak-Moslavina county...

 to the Serbs

Serbs

The Serbs are a South Slavic ethnic group of the Balkans and southern Central Europe. Serbs are located mainly in Serbia, Montenegro and Bosnia and Herzegovina, and form a sizable minority in Croatia, the Republic of Macedonia and Slovenia. Likewise, Serbs are an officially recognized minority in...

 somewhere in western Bosnia

History of Bosnia and Herzegovina (until 958)

Within the boundaries of today’s Bosnia and Herzegovina, there have been many layers of prehistoric cultures whose creation and disappearance are linked to migrations of unidentified ethnic groups.-Prehistory:...

 who controlled a great part of Dalmatia

Dalmatia (Roman province)

Dalmatia was an ancient Roman province. Its name is probably derived from the name of an Illyrian tribe called the Dalmatae which lived in the area of the eastern Adriatic coast in Classical antiquity....

 ("Sorabi, quae natio magnam Dalmatiae partem obtinere dicitur"). At this time, there was peace with Bulgaria

First Bulgarian Empire

The First Bulgarian Empire was a medieval Bulgarian state founded in the north-eastern Balkans in c. 680 by the Bulgars, uniting with seven South Slavic tribes...

.

His son, Vlastimir, is the founder of the House of Vlastimirović

House of Vlastimirovic

The Vlastimirović Dynasty was the first Serbian royal dynasty, named after Prince Vlastimir , who was recognized by the Byzantine Empire.The dynasty starts with the Unknown Archont, who ruled during Emperor Heraclius ....

, the first recognized dynasty of Serbia

Serbia

Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

.

Kinship

• Unknown Archont
  Unknown Archont
  The Unknown Archont is a conventional name given by historians to the Serbian leader who led the White Serbs from their homeland to settle in the Balkans after 610, during the reign of Byzantine Emperor Heraclius ....
  
   (~610–641+), Leader of Serbs and their Byzantine Sclaviniae under Heraclius
  Heraclius
  Heraclius was Byzantine Emperor from 610 to 641.He was responsible for introducing Greek as the empire's official language. His rise to power began in 608, when he and his father, Heraclius the Elder, the exarch of Africa, successfully led a revolt against the unpopular usurper Phocas.Heraclius'...
  
  .
  • Unknown lineage of several generations
    • Višeslav (~780-800)
      • Radoslav
        Radoslav of Serbia
        Radoslav was a Serbian Prince who ruled over the Serbs from 800 to 822, he succeeded his father Višeslav who united the Serbian tribes, resulting in the formation of Raška in the 8th century...
        
         (~800-822)
        • Prosigoj (822-836)
          • Vlastimir (836-~850)

Sources

• De Administrando Imperio
  De Administrando Imperio
  De Administrando Imperio is the Latin title of a Greek work written by the 10th-century Eastern Roman Emperor Constantine VII. The Greek title of the work is...
  
  by Constantine Porphyrogenitus
  Constantine VII
  Constantine VII Porphyrogennetos or Porphyrogenitus, "the Purple-born" was the fourth Emperor of the Macedonian dynasty of the Byzantine Empire, reigning from 913 to 959...
  
  , edited by Gy. Moravcsik and translated by R. J. H. Jenkins, Dumbarton Oaks Center for Byzantine Studies, Washington D. C., 1993
• Ćorović, Vladimir
  Vladimir Corovic
  Vladimir Ćorović was a 20th-century Serbian historian, member of the Serbian Academy of Sciences and Arts . He is best known for his many acclaimed works on the history of Serbs and Yugoslavia.-Early:...
  
  , Istorija srpskog naroda, Book I, (In Serbian) Electric Book, Rastko Electronic Book, Antikvarneknjige (Cyrillic)
  • Drugi Period, IV: Pokrštavanje Južnih Slovena
  • The Serbs, ISBN 0631204717, 9780631204718. Wiley-Blackwell, 2004, Google Books.
• Tibor Živković, Portreti srpskih vladara (IX—XII), Beograd, 2006 (ISBN 86-17-13754-1), p. 11