Alexios V Doukas (; died December 1204),
Latinized as Alexius V Ducas, was
Byzantine emperor
The foundation of Constantinople in 330 AD marks the conventional start of the Eastern Roman Empire, which Fall of Constantinople, fell to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as legitimate rulers and exercised s ...
from February to April 1204, just prior to the
sack of Constantinople
The sack of Constantinople occurred in April 1204 and marked the culmination of the Fourth Crusade. Crusaders sacked and destroyed most of Constantinople, the capital of the Byzantine Empire. After the capture of the city, the Latin Empire ( ...
by the participants of the
Fourth Crusade
The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating the powerful Egyptian Ayyubid S ...
. His family name was
Doukas, but he was also known by the nickname Mourtzouphlos or Murtzuphlus (), referring to either bushy, overhanging eyebrows or a sullen, gloomy character. He achieved power through a
palace coup, killing his predecessors in the process. Though he made vigorous attempts to defend Constantinople from the crusader army, his military efforts proved ineffective. His actions won the support of the mass of the populace, but he alienated the elite of the city. Following the fall, sack, and occupation of the city, Alexios V was
blinded by his father-in-law, the ex-emperor
Alexios III, and later executed by the new
Latin regime. He was the last Byzantine emperor to rule in Constantinople until the Byzantine
recapture of Constantinople in 1261.
Origins and character

Though in possession of the surname used by a leading Byzantine aristocratic family, there is very little definitely known concerning the ancestry of Alexios Doukas Mourtzouphlos. The noble Doukas clan were not the only Doukai, as the surname was also employed by many families of humble origins. It has been claimed that Alexios Doukas was a great-great-grandson of the emperor
Alexios I Komnenos
Alexios I Komnenos (, – 15 August 1118), Latinization of names, Latinized as Alexius I Comnenus, was Byzantine Emperor, Byzantine emperor from 1081 to 1118. After usurper, usurping the throne, he was faced with a collapsing empire and ...
() in the female line (
cognatic descent). This is not improbable, as all other Byzantine emperors, and the majority of attempted usurpers, of the period had a connection with the former imperial house of the
Komnenoi, either by descent or marriage. A more precise theory has been proposed, that he was the son of an Isaac Doukas, and was the second cousin of
Alexios IV Angelos (). His date of birth is also unknown, but it is sometimes given as because he was considered "old" in 1204. A letter sent to
Pope Innocent III
Pope Innocent III (; born Lotario dei Conti di Segni; 22 February 1161 – 16 July 1216) was head of the Catholic Church and ruler of the Papal States from 8 January 1198 until his death on 16 July 1216.
Pope Innocent was one of the most power ...
, stated that Alexios Doukas Mourtzouphlos was 'a blood relation' of Alexios IV Angelos.
The contemporary historian
Niketas Choniates
Niketas or Nicetas Choniates (; – 1217), whose actual surname was Akominatos (), was a Byzantine Greek historian and politician. He accompanied his brother Michael Akominatos to Constantinople from their birthplace Chonae (from which came h ...
was dismissed from office as
logothete of the ''sekreta'' by Mourtzouphlos. His assessment of the emperor's character might therefore be biased; however, Choniates allows that he was extremely clever by nature, though arrogant in his manner and lecherous.
Political intrigues and usurpation

The participation of Alexios Doukas Mourtzouphlos in the attempted overthrow of
Alexios III Angelos () by
John Komnenos the Fat
John Komnenos (Latinized as Comnenus), nicknamed "the Fat" (), was a Byzantine Empire, Byzantine noble who attempted to usurp the imperial throne from Alexios III Angelos in a short-lived coup in Constantinople on 31 July 1201 (or 1200). The cou ...
in 1200 had led to his imprisonment. Mourtzouphlos was probably imprisoned from 1201 until the restoration to the throne of
Isaac II Angelos
Isaac II Angelos or Angelus (; September 1156 – 28 January 1204) was Byzantine Emperor from 1185 to 1195, and co-Emperor with his son Alexios IV Angelos from 1203 to 1204. In a 1185 revolt against the Emperor Andronikos Komnenos, Isaac ...
(), the brother and predecessor of Alexios III. Isaac II, along with his son Alexios IV Angelos, were restored to the throne through the intervention of the leaders of the
Fourth Crusade
The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating the powerful Egyptian Ayyubid S ...
in July 1203. On release, Mourtzouphlos was invested with the court position of ''
protovestiarios
''Protovestiarios'' (, ) was a high Byzantine court position, originally reserved for eunuchs. In the late Byzantine period (12th–15th centuries), it denoted the Empire's senior-most financial official, and was also adopted by the medieval Ser ...
'' (head of the imperial finances). He had been married twice but was allegedly the lover of
Eudokia Angelina, a daughter of Alexios III.
By the beginning of 1204, Isaac II and Alexios IV had inspired little confidence among the people of
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...
with their efforts to protect the city from the
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
crusaders and their
Venetian allies, and the citizens were becoming restless. The crusaders were also losing patience with the emperors; they rioted and set fires in the city when the money and aid promised by Alexios IV was not forthcoming. The fires affected about a sixth of the area of Constantinople and may have made up to a third of the population homeless; the dislocation and desperation of those affected eventually sapped the will of the people to resist the crusaders. Alexios Doukas Mourtzouphlos emerged as a leader of the anti-Latin movement in the city. He won the approval of the populace by his valour in leading an attack on the Latins at "Trypetos Lithos"; in this clash his mount stumbled and he would have been killed or captured had a band of youthful archers from the city not defended him. Mourtzouphlos exploited the hatred of the people for the Latins to serve his personal ambition.
The citizens of Constantinople rebelled in late January 1204, and in the chaos an otherwise obscure nobleman named
Nicholas Kanabos was acclaimed emperor, though he was unwilling to accept the crown. The two co-emperors barricaded themselves in the
Palace of Blachernae and entrusted Mourtzouphlos with a mission to seek help from the crusaders, or at least they informed him of their intentions. Instead of contacting the crusaders, Mourtzouphlos, on the night of 28–29 January 1204, used his access to the palace to bribe the "ax-bearers" (the
Varangian Guard
The Varangian Guard () was an elite unit of the Byzantine army from the tenth to the fourteenth century who served as personal bodyguards to the Byzantine emperors. The Varangian Guard was known for being primarily composed of recruits from Nort ...
), and with their backing arrest the emperors. Choniates states that Mourtzouphlos, when bribing the guards, had the help of a eunuch with access to the imperial treasury. The support of the Varangians seems to have been of major importance in the success of the coup, though Mourtzouphlos also had help from his relations and associates. The young Alexios IV was eventually strangled in prison; while his father Isaac, both enfeebled and blind, died at around the time of the coup, his death variously attributed to fright, sorrow, or mistreatment. Kanabos was initially spared and offered an office under Alexios V, but he refused both this and a further summons from the emperor and took sanctuary in the
Hagia Sophia
Hagia Sophia (; ; ; ; ), officially the Hagia Sophia Grand Mosque (; ), is a mosque and former Church (building), church serving as a major cultural and historical site in Istanbul, Turkey. The last of three church buildings to be successively ...
; he was forcibly removed and killed on the steps of the cathedral.
Emperor

The timing of the deaths of the deposed emperors and of Kanabos, and their relation to the coronation of Alexios V are problematic. Alexios V appears to have been acclaimed emperor as early as the night he moved against the
Angeloi co-emperors, on 27 January. He was crowned soon after, on or around 5 February.
[ (]Novgorod Chronicle
The Novgorod First Chronicle ( rus, Новгоро́дская пе́рвая ле́топись, Novgoródskaya pérvaya létopisʹ, nəvɡɐˈrot͡skəjə ˈpʲervəjə ˈlʲetəpʲɪsʲ, commonly abbreviated as NPL), also known by its 1914 Eng ...
)
Finding the treasury empty, the new emperor confiscated money from the aristocracy and high officials to be put to public use. These actions endeared Alexios V to the citizens, but alienated his relations and other prominent supporters. Once in firm control, Alexios V closed the gates of the city to the crusaders and strengthened the
fortifications
A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from La ...
. Sword in hand, he was active in leading attacks on sorties made by the crusaders in search of supplies. On 2 February,
Henry of Flanders led a part of the crusader army to Filea (or Phileas), in order to obtain food supplies. As he returned towards Constantinople, Alexios V attacked his rearguard. The Byzantines were defeated, the imperial standard and an important icon of the
Virgin
Virginity is a social construct that denotes the state of a person who has never engaged in sexual intercourse. As it is not an objective term with an operational definition, social definitions of what constitutes virginity, or the lack thereof ...
(the ''
Panagia Nikopoios'') were captured. The Byzantines lost some of their best soldiers in the clash, and Alexios V was lucky to escape alive. At about this time Alexios V attempted to destroy the crusader fleet with
fire-ships, but to little effect.
The loss of the icon, traditionally seen as a physical embodiment of divine protection for the city, was a severe psychological blow. Its possession by the crusaders convinced many of the population of Constantinople that the victory of the Westerners was now divinely sanctioned, as a punishment for the sins of the Byzantines.
Around 8 February, Alexios V met the
Doge of Venice
The Doge of Venice ( ) – in Italian, was the doge or highest role of authority within the Republic of Venice (697–1797). The word derives from the Latin , meaning 'leader', and Venetian Italian dialect for 'duke', highest official of the ...
,
Enrico Dandolo, for peace talks. The conditions demanded by the Venetian, however, were too harsh for the Byzantines to consider. Choniates states that the meeting was brought to a close by a sudden attack by crusader cavalry on Alexios V and his entourage, the emperor narrowly escaping capture. Alexios IV was probably killed the same day; the insistence by the crusaders that he be restored to the throne may have precipitated his death. When news of the death of Alexios IV reached the crusaders, relations between them and Alexios V deteriorated further. The forcible expulsion of all Latins resident in Constantinople in March seems to have been the tipping point which led the crusaders to begin actively negotiating amongst themselves regarding the
partition of the Byzantine Empire. They also began to prepare for their final assault on the city, which took place the following month.
The fall of Constantinople, flight and death
The defenders of Constantinople held out against a crusader assault on 9 April.
[ The crusaders' second attack three days later, however, proved too strong to repel. Breaking through the walls near the Petria Gate, the crusaders entered the city and looted the Blachernae Palace. Alexios V attempted to rally the people to the defence of the city, but with no success. Alexios V then boarded a fishing boat and fled the city towards ]Thrace
Thrace (, ; ; ; ) is a geographical and historical region in Southeast Europe roughly corresponding to the province of Thrace in the Roman Empire. Bounded by the Balkan Mountains to the north, the Aegean Sea to the south, and the Black Se ...
on the night of 12 April 1204, accompanied by Eudokia Angelina and her mother Euphrosyne Doukaina Kamatera. In the Hagia Sophia Constantine Laskaris
Constantine Laskaris () may have been Byzantine Emperor for a few months from 1204 to early 1205. He is sometimes called "Constantine XI", a numeral now usually reserved for Constantine Palaiologos.
Early years
Constantine Laskaris was born of ...
was acclaimed as emperor, but being unable to persuade the Varangians to continue the fight, in the early hours of 13 April he also fled, leaving Constantinople under crusader control.
Alexios V and his companions eventually reached Mosynopolis, which had been occupied by the deposed emperor Alexios III Angelos and his followers. At first they were well received, with Alexios V marrying Eudokia Angelina. Later, however, Alexios III arranged for his new son-in-law to be made captive and blinded, thereby rendering him ineligible for the imperial throne. Having been abandoned by both his supporters and his father-in-law, Alexios V was captured near Mosynopolis, or possibly in Anatolia
Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...
, by the advancing Latins under Thierry de Loos
Thierry de Loos (alternatively, Dietrich von Los) was a French people, Franco-Flemish people, Flemish nobleman who took part in the Fourth Crusade and afterwards became prominent within the Latin Empire.
Life Origins and participation in the Fourt ...
in November 1204. On his return to Constantinople as a prisoner, Alexios V was tried for treason against Alexios IV. In his trial the blind ex-emperor argued that it was Alexios IV who had committed treason to his country, through his intention to invite the crusaders to enter Constantinople in force. On being condemned, he was executed by novel means: he was thrown to his death from the top of the Column of Theodosius.
The new, alien, Latin regime of conquerors in Constantinople may have viewed the public trial and execution of the man who murdered the last "legitimate emperor" as a way to cast an aura of legitimacy on themselves. Alexios V was the last Byzantine Emperor to reign in Constantinople before the establishment of the Latin Empire
The Latin Empire, also referred to as the Latin Empire of Constantinople, was a feudal Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire. The Latin Empire was intended to replace the Byzantin ...
, which controlled the city for the next 57 years, until it was recovered by the Nicaean Emperor Michael VIII Palaiologos
Michael VIII Palaiologos or Palaeologus (; 1224 – 11 December 1282) reigned as Byzantine emperor from 1261 until his death in 1282, and previously as the co-emperor of the Empire of Nicaea from 1259 to 1261. Michael VIII was the founder of th ...
in 1261.[Hendrickx and Matzukis, pp. 127–131]
See also
*List of Byzantine emperors
The foundation of Constantinople in 330 AD marks the conventional start of the Eastern Roman Empire, which Fall of Constantinople, fell to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as legitimate rulers and exercised s ...
*Sack of Constantinople (1204)
The sack of Constantinople occurred in April 1204 and marked the culmination of the Fourth Crusade. Crusaders sacked and destroyed most of Constantinople, the capital of the Byzantine Empire. After the capture of the city, the Latin Empire ( ...
References
Bibliography
*Akropolites, G. ''The History'', trans. Ruth Macrides (2007) Oxford University Press
*
*Falk, A. (2010) ''Franks and Saracens: Reality and Fantasy in the Crusades'', Karnac Books
*Giarenis, I. (2017) "The Crisis of the Fourth Crusade in Byzantium (1203–1204) and the Emergence of Networks for Anti-Latin Reaction and Political Action", ''Mediterranean World'', 23, pp. 73–80.
*Head, C. (1980) "Physical Descriptions of the Emperors in Byzantine Historical Writing", ''Byzantion'', Vol. 50, No. 1 (1980), Peeters Publishers, pp. 226–240
*Hendrickx, B. and Matzukis, C. (1979
"Alexios V Doukas Mourtzouphlos: His Life, Reign and Death (?–1204)
, in ''Hellenika'' (''Έλληνικά'') 31: 111–117
*Madden, T.F. (1992) "The Fires of the Fourth Crusade in Constantinople, 1203–1204: A Damage Assessment", ''Byzantinische Zeitschrift'', lxxxiv–v, pp. 72–93.
*Madden, T.F. (1995) "Outside and Inside the Fourth Crusade", ''The International History Review'', Vol. 17, No. 4 (Nov., 1995), Taylor and Francis, pp. 726–743
*
Further reading
* Jonathan Harris, ''Byzantium and the Crusades'' (London and New York, 2nd ed., 2014).
*
* Jonathan Phillips (2004). ''The Fourth Crusade and the Sack of Constantinople'' (London and New York, 2004)
*
*
{{DEFAULTSORT:Alexios 05
Alexios Doukas
Alexios Doukas
12th-century Byzantine people
13th-century Byzantine emperors
13th-century rebels
Angelid dynasty
Blind royalty and nobility
Greek blind people
Byzantine prisoners and detainees
Christians of the Fourth Crusade
Deaths from falls
Doukas family
Executed Byzantine people
Executed monarchs
Leaders who took power by coup
Monarchs taken prisoner in wartime
People executed for treason
Protovestiarioi