Leo Diogenes

Leo Diogenes
Co-emperor of the Byzantine Empire^[1]
Reign	1069–1071
Born	1069
Died	1087
Dynasty	Doukid dynasty
Father	Romanus IV
Mother	Eudokia Makrembolitissa

Leo Diogenes (Greek: Λέων Διογένης, Leōn Diogenes) was the son of Byzantine Emperor Romanos IV Diogenes and Eudokia Makrembolitissa. Crowned co-emperor during his father's reign, he later served in the armies of Emperor Alexios I Komnenos.

Life

Leo’s father, Romanos IV Diogenes, died while Leo was still an infant. Although elevated to the rank of co-emperor on his birth, he was banished to a monastery along with his mother after the fall of Romanos.^[1] Here he remained until the accession of Alexios I Komnenos in 1081, who took in Leo and his brother Nikephoros and raised them like his own sons.^[1]

According to Anna Komnene’s account, Leo was a committed supporter of Alexios, who urged him not only to confront the Norman invaders early in his reign,^[2] but also the Pechenegs who had invaded the empire from beyond the Danube in 1087.^[3] During one of the pitched battles against the Pechenegs, Leo allowed himself to be drawn away from the emperor’s side, and as he approached the wagons of the enemy, he was struck down and died on the field of battle.^[4]

References

1 2 3 Canduci, pg 272
↑ Comnena, Book 4, Chapter 5
↑ Comnena, Book 7, Chapter 2
↑ Comnena, Book 7, Chapter 3

Sources

Canduci, Alexander (2010), Triumph & Tragedy: The Rise and Fall of Rome's Immortal Emperors, Pier 9, ISBN 978-1-74196-598-8
Dawes, Elizabeth A., ed. (1928), The Alexiad, London: Routledge & Kegan Paul
Skoulatos, Basile (1980), Les personnages byzantins de I'Alexiade: Analyse prosopographique et synthese (in French), Louvain: Nauwelaerts

Roman and Byzantine emperors

Principate 27 BC – 235 AD	Augustus Tiberius Caligula Claudius Nero Galba Otho Vitellius Vespasian Titus Domitian Nerva Trajan Hadrian Antoninus Pius Marcus Aurelius and Lucius Verus Commodus Pertinax Didius Julianus (Pescennius Niger) (Clodius Albinus) Septimius Severus Caracalla with Geta Macrinus with Diadumenian Elagabalus Severus Alexander

Crisis 235–284	Maximinus Thrax Gordian I and Gordian II Pupienus and Balbinus Gordian III Philip the Arab with Philippus II Decius with Herennius Etruscus Hostilian Trebonianus Gallus with Volusianus Aemilianus Valerian Gallienus with Saloninus and Valerian II Claudius Gothicus Quintillus Aurelian Tacitus Florian Probus Carus Carinus and Numerian Gallic Emperors: Postumus (Laelianus) Marius Victorinus (Domitianus II) Tetricus I with Tetricus II as Caesar

Dominate 284–395	Diocletian (whole empire) Diocletian (East) and Maximian (West) Diocletian (East) and Maximian (West) with Galerius (East) and Constantius Chlorus (West) as Caesares Galerius (East) and Constantius Chlorus (West) with Severus (West) and Maximinus Daia (East) as Caesares Galerius (East) and Severus (West) with Constantine the Great (West) and Maximinus Daia (East) as Caesares Galerius (East) and Maxentius (West) with Constantine the Great (West) and Maximinus Daia (East) as Caesares Galerius (East) and Licinius I (West) with Constantine the Great (West) and Maximinus Daia (East) as Caesares Maxentius (alone) Licinius I (West) and Maximinus Daia (East) with Constantine the Great (Self-proclaimed Augustus) and Valerius Valens Licinius I (East) and Constantine the Great (West) with Licinius II, Constantine II, and Crispus as Caesares (Martinian) Constantine the Great (whole empire) with son Crispus as Caesar Constantine II Constans I Magnentius with Decentius as Caesar Constantius II with Vetranio Julian Jovian Valentinian the Great Valens Gratian Valentinian II Magnus Maximus with Flavius Victor Theodosius the Great

Western Empire 395–480	Honorius (Constantine III with son Constans II) Constantius III Joannes as Western usurper in Ravenna Valentinian III Petronius Maximus with Palladius Avitus Majorian then Libius Severus then Anthemius then Olybrius Glycerius Julius Nepos (de jure) Romulus Augustulus (Usurper)

Eastern/ Byzantine Empire 395–1204	Arcadius Theodosius II Pulcheria Marcian Leo I the Thracian Leo II Zeno (first reign) Basiliscus with son Marcus as co-emperor Zeno (second reign) Anastasius I Dicorus Justin I Justinian the Great Justin II Tiberius II Constantine Maurice with son Theodosius as co-emperor Phocas Heraclius Constantine III Heraklonas Constans II Constantine IV with brothers Heraclius and Tiberius and then Justinian II as co-emperors Justinian II (first reign) Leontios Tiberios III Justinian II (second reign) with son Tiberius as co-emperor Philippikos Anastasios II Theodosius III Leo III the Isaurian Constantine V Artabasdos Leo IV the Khazar Constantine VI Irene Nikephoros I Staurakios Michael I Rangabe with son Theophylact as co-emperor Leo V the Armenian with Symbatios-Constantine as junior emperor Michael II the Amorian Theophilos Michael III Basil I the Macedonian Leo VI the Wise Alexander Constantine VII Porphyrogennetos Romanos I Lekapenos with sons Christopher, Stephen and Constantine as junior co-emperors Romanos II Nikephoros II Phokas John I Tzimiskes Basil II Constantine VIII Zoe (first reign) and Romanos III Argyros Zoe (first reign) and Michael IV the Paphlagonian Michael V Kalaphates Zoe (second reign) with Theodora Zoe (second reign) and Constantine IX Monomachos Constantine IX Monomachos (sole emperor) Theodora Michael VI Bringas Isaac I Komnenos Constantine X Doukas Romanos IV Diogenes Michael VII Doukas with brothers Andronikos and Konstantios and son Constantine Nikephoros III Botaneiates Alexios I Komnenos John II Komnenos with Alexios Komnenos as co-emperor Manuel I Komnenos Alexios II Komnenos Andronikos I Komnenos Isaac II Angelos Alexios III Angelos Alexios IV Angelos Nicholas Kanabos as usurper chosen by the Senate Alexios V Doukas

Empire of Nicaea 1204–1261	Constantine Laskaris Theodore I Laskaris John III Doukas Vatatzes Theodore II Laskaris John IV Laskaris

Eastern/ Byzantine Empire 1261–1453	Michael VIII Palaiologos Andronikos II Palaiologos with Michael IX Palaiologos as co-emperor Andronikos III Palaiologos John V Palaiologos John VI Kantakouzenos with John V Palaiologos and Matthew Kantakouzenos as co-emperors John V Palaiologos Andronikos IV Palaiologos John VII Palaiologos Andronikos V Palaiologos Manuel II Palaiologos John VIII Palaiologos Constantine XI Palaiologos

Italics usually indicate an usurper or co-emperor.

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