Strez (Bulgarian and ; original spelling: Стрѣзъ;Rendered as Στρέαζος, Streazos in Byzantine Greek and as Straces or Stratius in Latin sources. Златарски, p. 270 fl. 1207–1214) was a medieval, semi-independent Bulgarian sebastokrator.Florin Curta, Southeastern Europe in the Middle Ages, 500–1250. Cambridge Medieval Textbook, pp. 377, 385. He was a member of the Asen dynasty and a cousin or a brother of Boril of Bulgaria. A major contender for the Bulgarian throne, Strez initially opposed the ascension of his close relative Tsar Boril. He fled to Serbia, where he accepted the vassalage of Grand Prince Stefan Nemanjić, and Serbian support helped him establish himself as a largely independent ruler in a large part of the region of Macedonia. However, Strez turned against his suzerains to become a Bulgarian vassal and joined forces with his former enemy Boril against the Latins and then Serbia. Strez died amidst a major anti-Serbian campaign under unclear circumstances, sometimes described as a Serbian plot.
Throne contender and Serbian vassal
Nothing is mentioned of Strez until the events in the wake of the sudden death of Tsar Kaloyan (1197–1207) during his siege of the Crusader-held Thessaloniki.Божилов, p. 98 Just like Alexius Slav, another noble who would later emerge as a separatist, Strez was a nephew of the Asen brothers Peter, Ivan Asen and Kaloyan, who were the first three emperors of the Second Bulgarian Empire.Бакалов (2003) However, it is unclear whether through his relation to the early Asens he was a first cousin or a brother of Boril (1207–1218).Fine, p. 94ПавловАндреев (1999), p. 353
At the time of Kaloyan's death, Strez was in the capital Tarnovo, perhaps seeking to capitalize on his ancestral rights to the Bulgarian crown. However, Boril proved to be the more ambitious candidate. Boril persecuted the other candidates for the throne, and Alexius Slav, along with Ivan Asen's sons Ivan Asen II had to leave Bulgaria.Андреев (1999), p. 354
As happened to other members of the royal family, Boril's ascension forced Strez and his closest supporters to flee, in that case to neighbouring Serbia, where he was welcomed by the reigning Stefan Nemanjić (1196–1228) in 1207 or early 1208.Curta, p. 385 Even though Boril requested the extradition of Strez to Bulgaria,Андреев (2004), p. 179 the Serbian ruler hoped to use Strez as a puppet in gaining Bulgarian-held territory. Stefan believed that Strez's royal ancestry and imperial aspirations would make it much easier to impose Serbian rule over Macedonia, Kosovo and Braničevo, as well as Belgrade, all captured by Bulgaria under Kaloyan.Fine, pp. 94–95 At the same time, Boril was unable to take military action against Strez and his Serbian patron, as he had suffered a major defeat at the hands of the Latins at Plovdiv.Velimirović, p. 61Андреев (2004), p. 180 Stefan went as far as to become a blood brother of Strez in a ceremony which Stefan was hoping would secure Strez's loyalty.
In 1208, Strez headed a Serbian force which seized much of the Vardar valley from Bulgaria. He established himself as a Serbian vassal at the Prosek fortress (near modern Demir Kapija), formerly the capital of Vlach separatist Dobromir Chrysos. By 1209, Strez's realm spread over much of Macedonia, from the Struma valley in the east, where he bordered the lands controlled by Boril, to Bitola and perhaps Ohrid in the west, and from Skopje in the north to Veria in the south. While Strez quickly gained the support of the local Bulgarian population and possibly inherited the remaining administration from Boril's rule, Serbian units nevertheless remained in his domains, either to guarantee his loyalty or with the intent to oust him and annex his lands.Fine, pp. 95–96
Bulgarian vassal Alexius Slav's marriage to the daughter of Latin Emperor Henry of Flanders in 1209 was potentially a great danger to Boril, who could be facing their joint forces. Fearing such a coalition, Boril approached Strez, who was at the time gaining more power and was close to complete independence from Serbia. Strez agreed to a union with his former enemy, though only after Boril reconfirmed his complete autonomy.Андреев (2004), p. 181Божилов, p. 99 Strez eliminated the remaining Serbian troops in his lands in an act that the Serbs saw as devil-inspired treason. It is not impossible that Boril persuaded Strez through military action, though it is more likely that the union was achieved through negotiations.Fine, pp. 97–98
In the same year, Strez and Boril had come to peace with Michael I Komnenos Doukas, the ruler of Epirus. In late 1209, Strez and Michael may have attempted a joint campaign against Thessaloniki,Андреев (1999), p. 355 as they both lost lands to the Latins in what was likely a retaliation raid in late 1209 or early 1210. The failure of this attack prompted Michael to break away from his Bulgarian allies and support the Latins. In early 1211, Strez clashed with the Latins and Epirotes at Thessaloniki and required Boril's assistance after Michael and Henry invaded the western reaches of Strez's realm. In the early summer, the allied Bulgarian army suffered a heavy defeat at Bitola at the hands of Michael, Henry's brother Eustace and Bernard of Katzenellenbogen.Housley, p. 73 Even though it resulted in no territorial losses, it prevented Strez from an expansion to the south. In relation to an anti-Bogomil council in 1211, Strez is referred to as a sebastokrator. The title was either conferred to him by Boril as part of their agreement in 1209, or was awarded to Strez by Kaloyan during his rule. In any case, Boril certainly recognized Strez's right to that appellation. There are signs that Strez divided his possessions into administrative units, each headed by a sebastos.Fine, p. 98 In 1212, Strez was powerful enough to be considered one of the Latin Empire's chief adversaries, along with Boril, Michael and Nicaean emperor Theodore I Laskaris, by Henry himself.
Anti-Serbian campaign and death After a series of military failures against the Latins, Boril made peace with Henry in 1213, cemented through two royal marriages.Fine, pp. 100–101Андреев (2004), p. 182 As Boril's vassal, Strez joined the Bulgarian–Latin union, the short-term goal of which was a double invasion of Serbia.Бакалов (2007), p. 154Fine, p. 101 In 1214, the forces of Boril and Henry attacked Serbia from the east, while Strez's army, deemed in contemporary sources to be "countless", penetrated Serbian territory from the south and reached the Polog. Facing a major invasion on two fronts, the Serbs were quick to ask for peace. After Stefan's envoys to Strez failed, he sent his brother, archbishop Sava (canonized as Saint Sava) to Strez's camp.Андреев (2004), p. 183Fine, p. 103
Even though Sava's diplomacy was of no effect either, Strez died the night after Sava's departure. Serbian sources present the death of Strez as a miracle, Strez being stabbed by an angel,Андреев (1999), p. 356 though he was possibly murdered in a plot orchestrated by Sava. Historian John V. A. Fine theorizes that Sava may have found supporters among Strez's nobles, some of whom had turned against him and organized his murder, only to defect to Serbia immediately afterwards. According to the hagiography of Saint Sava, in his dying words Strez claimed he was stabbed by a young soldier on the order of Sava.Fine, pp. 103–104Velimirović, p. 62
While Strez's death meant an end to the Latin–Bulgarian campaign, Stefan did not undertake a campaign into Macedonia due to the proximity of the coalition troops, which had halted at Niš. In 1217, all of Strez's territory was under the Epirote rule of Theodore Komnenos Doukas, though Boril may have controlled some or all of it in the meantime.Fine, p. 104 The Serbs failed to take advantage of Strez's death as far as they did not manage to acquire any of his former domains.
Assessment and legacy Contemporary Serbian sources, such as the hagiography of Saint Sava, are highly critical of Strez's actions. The Serbs accused Strez of recklessness, drunkenness, ungodliness, treason and cruelty. The hagiography of Saint Sava tells of Strez's alleged tendency to have captives thrown from a high cliff into the Vardar River for his and his guests' entertainment. As the prisoners were falling to their death, Strez would sarcastically shout at them not to get their coats wet.Velimirović, pp. 60–62Андреев (1999), pp. 355–356 Bulgarian historian Ivan Lazarov dismisses these allegations as slanderous. In his biography of Strez, he hails the medieval ruler as a "true member of the Asen dynasty" and defends his actions due to him being a "child of his time". Lazarov assesses Strez as a characteristic, vivid personality who put his independence above all.
The name of Strez has become a part of Bulgarian folklore, including a legendary account of his life written down as the Biography of Prince Stregan in the 18th century or later.Мутафчиев, p. 110 At least one location throughout Macedonia was tied by the locals with Strez, whom the folk interpreted as a voivode or hajduk who defended the people against the Ottomans. Some ruins by the Vardar River near Jegunovce west of Skopje were known to the locals as "Strez's Fortress" (Стрезово кале, Strezovo kale).Мутафчиев, p. 276 Even though in reality his capital, Prosek, lay far to the south, the castle at Jegunovce may have formed part of Strez's border fortifications, or it may have been the site of his negotiations with Sava and his death.Мутафчиев, p. 280
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