Comentiolus (, ''Komentiolos''; died 602) was a prominent Eastern Roman (
Byzantine
The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the events that caused the fall of the Western Roman E ...
) general at the close of the 6th century during the reign of Emperor
Maurice (). He played a major role in
Maurice's Balkan campaigns
Maurice's Balkan campaigns were a series of military expeditions conducted by Byzantine emperor, Roman Emperor Maurice (emperor), Maurice (reigned 582–602) in an attempt to defend the Balkans, Balkan provinces of the Byzantine Empire, Roman Empi ...
, and fought also in the East
against the Sassanid Persians. Comentiolus was ultimately
executed
Capital punishment, also known as the death penalty and formerly called judicial homicide, is the state-sanctioned killing of a person as punishment for actual or supposed misconduct. The sentence (law), sentence ordering that an offender b ...
in 602 after the
Byzantine army
The Byzantine army was the primary military body of the Byzantine Empire, Byzantine armed forces, serving alongside the Byzantine navy. A direct continuation of the East Roman army, Eastern Roman army, shaping and developing itself on the legac ...
rebelled against Maurice and Emperor
Phocas
Phocas (; ; 5475 October 610) was Eastern Roman emperor from 602 to 610. Initially a middle-ranking officer in the East Roman army, Roman army, Phocas rose to prominence as a spokesman for dissatisfied soldiers in their disputes with the cour ...
() usurped the throne.
Biography

Nothing is known of Comentiolus's early life, except that he hailed from
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 ...
. He first appears in 583, as an officer (''scribon'') in the ''
Excubitores'', the imperial bodyguard, when he accompanied a Byzantine embassy to
Bayan I
Bayan I reigned as the first khagan of the Avar Khaganate between 562 and 602.
As the Göktürk Empire expanded westwards on the Eurasian Steppe during the 6th century, peoples such as the Avars (also known as the ''Pseudo-Avars'', ''Obri'', ...
(), the
khagan
Khagan or Qaghan (Middle Mongol:; or ''Khagan''; ) or zh, c=大汗, p=Dàhán; ''Khāqān'', alternatively spelled Kağan, Kagan, Khaghan, Kaghan, Khakan, Khakhan, Khaqan, Xagahn, Qaghan, Chagan, Қан, or Kha'an is a title of empire, im ...
of the
Avars. According to the historian
Theophylact Simocatta, he enraged the khagan with an outspoken statement, and was briefly imprisoned.
It is likely that the close trust he shared with Maurice dates from the latter's time as commander of the ''Excubitores'', before his ascension to the throne. Throughout his career, Comentiolus would be loyal to Maurice, and the Emperor would watch over his protégé's career. The next year, after a truce with the Avars had been arranged, he was appointed in charge of a regiment (''
taxiarch
The word taxiarch ( ; ) is used in the Greek language to mean "brigadier". The term derives , in military context meaning 'an ordered formation'. It is cognate with the scientific term taxonomy. In turn, the rank has given rise to the Greek term ...
ia'') operating against the
Slavic tribes that raided Thrace and had penetrated as far as the
Long Walls of Anastasius,
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 ...
's outer defensive system. Comentiolus defeated them at the river Erginia, near the Long Walls. As a reward for this success, he was appointed ''
magister militum praesentalis'' in 585.
On this occasion, or perhaps a bit later (possibly in 589), Comentiolus was raised to the supreme title of ''
patricius''. In the summer of 585, he defeated again a large force of Slavs, and in 586 he was placed in charge of the war against the Avars, after they broke the treaty. In 587, Comentiolus assembled a 10,000 strong army at
Anchialus. He prepared an ambush for the Avar khagan in the
Haemus mountains, but it failed.

By 589, Comentiolus appears to have served as ''magister militum'' in the province of
Spania
Spania () was a Roman province, province of the Eastern Roman Empire from 552 until 624 in the south of the Iberian Peninsula and the Balearic Islands. It was established by the List of Byzantine emperors, Emperor Justinian I in an effort to res ...
(southern Spain): an inscription bearing his name has been found in
Carthago Nova, but it may have been erected by a namesake. At any rate, by the autumn of 589 he was back in the East, replacing
Philippicus in command of the eastern army in the
ongoing war against the
Sassanid Persians. His army defeated the Persians at the Battle of Sisauranon in the same year and unsuccessfully tried to recapture
Martyropolis. In the spring of 590, however, while at his headquarters at
Hierapolis
Hierapolis (; , lit. "Holy City") was a Hellenistic Greek city built on the site of a Phrygian cult center of the Anatolian mother goddess Cybele, in Phrygia in southwestern Anatolia, Turkey. It was famous for its hot springs, its high qualit ...
, he received an unexpected guest: the legitimate Persian king,
Khosrau II
Khosrow II (spelled Chosroes II in classical sources; and ''Khosrau''), commonly known as Khosrow Parviz (New Persian: , "Khosrow the Victorious"), is considered to be the last great Sasanian King of Kings (Shahanshah) of Iran, ruling from 590 ...
(), who had fled to Byzantine territory to seek support against the usurper
Bahram VI Chobin (). Emperor Maurice decided to support the exiled monarch, and assembled an army to restore Khosrau to his throne. Comentiolus was initially slated to lead this force, but after Khosrau complained of Comentiolus being disrespectful towards him, he was replaced as commander of the expedition by
Narses
Narses (also spelled Nerses; ; ; ; c. 478–573) was a distinguished Byzantine general and statesman of Armenian heritage, renowned for his critical role in Emperor Justinian I’s military campaigns. Alongside the famed Belisarius, Narses was ...
. Comentiolus still took part in the subsequent campaign as commander of the army's right wing. The restored Persian king repaid Roman assistance with a treaty which put an end to the war that had lasted almost 20 years, and ceded back all cities lost in Mesopotamia, as well as most of
Armenia
Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...
, to the Romans.
This favourable peace meant that Byzantium's forces could now be concentrated against the Avar and Slav incursions in the Balkans. In 598, Comentiolus was sent back into action against the Avars, probably with the position of ''magister militum per Thracias''. After a heavy defeat caused by his neglect to properly array his forces for battle, his army was scattered and he himself fled to Constantinople, where he faced charges of treason. These were dropped at the Emperor's request, and Comentiolus was reconfirmed as general for Thrace. His subsequent record is not very distinguished, but according to
Michael Whitby this may be more due to the negative bias of Simocatta, the main primary source for the period, towards him and his co-general
Peter
Peter may refer to:
People
* List of people named Peter, a list of people and fictional characters with the given name
* Peter (given name)
** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church
* Peter (surname), a su ...
, rather than because of inability or inaction on his part. At any rate, when the army rebelled against Maurice in 602, Comentiolus was entrusted with the defence of the
Walls of Constantinople
The Walls of Constantinople (; ) are a series of defensive wall, defensive stone walls that have surrounded and protected the city of Constantinople (modern Fatih district of Istanbul) since its founding as the new capital of the Roman Empire b ...
. When
Phocas
Phocas (; ; 5475 October 610) was Eastern Roman emperor from 602 to 610. Initially a middle-ranking officer in the East Roman army, Roman army, Phocas rose to prominence as a spokesman for dissatisfied soldiers in their disputes with the cour ...
eventually took the city, he was one of the first adherents of the old regime to be executed.
References
Sources
*
*{{cite book, last=Whitby, first=Michael, title=The Emperor Maurice and his Historian – Theophylact Simocatta on Persian and Balkan Warfare, year=1988, location=Oxford, United Kingdom, publisher=Oxford University Press, isbn=0-19-822945-3, url=https://books.google.com/books?id=VAcAJfJP9KUC
6th-century births
6th-century Byzantine generals
7th-century Byzantine generals
602 deaths
7th-century executions by the Byzantine Empire
Avar–Byzantine wars
Generals of Maurice
Executed Byzantine people
Magistri militum
People of the Roman–Sasanian Wars