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John Viii Palaeologus

Medal by Pisanello , produced in Florence in 1438

John VIII Palaeologus, born 16 December 1392 in Constantinople , died on 31 October 1448 , Emperor Byzantine from 1425 to 1448 , the son of Manuel II Palaeologus , Byzantine Emperor, and Helena Dragas.

When John VIII ascended the throne, the Byzantine Empire was reduced to the city of Constantinople and the Morea. March 26, 1430, the Turks seized in Thessaloniki, who was then the second city of the Empire.

John VIII then seeks help from Westerners and Pope Eugene IV, who sent him a messenger in the person of Nicolas of Cusa. In concluding the union of Churches ( Council of Florence in 1439 ), it facilitates the adoption of a common interpretation of the Latin Filioque, but John VIII can not impose on his people: Most of the dignitaries of the Orthodox Church condemned, indeed, the results of the council and undermine the position of the Emperor.

The disaster of Varna , 10 December 1444 , delivers the Byzantine Empire to the Turks in 1446 , which impose their tutelage.

Family

He married three times, had no children:

in 1409 with Anne Moscow (1393 1417), daughter of Basil I , Grand Prince of Moscow
in 1421 with Sophia of Montferrat (1396 1437), daughter of Theodore II Palaeologus, Marquis of Monferrato. They separated in 1426
in 1427 with Marie Comnenus ( 1439), daughter of Alexios IV of Trebizond

Maximin the Thracian ^I. Gordian and Gordian II Maxime Pupien and Balbin Gordian III Philip the Arab Decius (with Herennius Etruscus ) Hostilianus Trebonianus Galle (with Volusien ) Emilien Valerian Gallien (with Salonin ) Claudius the Goth Quintillus Aurlien Tacitus Florien Probus Carus Carin Numerian

Dominate
284-395

Diocletian Maximian Constantius Galerius Severus Maxence Maximin Daia Licinius (with Valerius Valens and Martinien ) Constantine ^I Constantine II Constant ^I. Constantius II (with Vetranio ) Julian the Apostate Jovian Valentinian ^I Valens Gratien Valentinian II Theodosius ^I

Western Roman Empire
395-480

Honorius Constantius III Jean Valentinian III Petronius Maximus Eparchus Avitus Majorian Libius Severus Anthemius Olybrius Glycerius Julius Nepos Romulus Augustus

Eastern Roman Empire
395-1204

Arcadius Theodosius II Marcian ^Leo I. Leo II Zeno Basiliscus Anastasius ^I. Justin ^I. Justinian ^I Justin II Tiberius II Constantine Maurice ^I. Phocas Heraclius Constantine III Hraclonas Constant II Constantine IV Justinian II Leonce II Tiberius III Philippicos Anastasius II Theodosius III Leo III Constantine V Artabasde Leo IV Constantine VI Irene the Athenian Nicephorus I Staurakios Michael ^I Rhangab Leo V the Armenian Michael II Theophilus Michael III Basil ^I. Leo VI the Wise Alexander Constantine VII Porphyrogenitus Roman ^I. Lecapenus Romanus II Nicephorus II Phocas John I Tzimiskes Basil II and Constantine VIII Zoe of Byzantium with Romain Argyre III and Michael IV and V Michel and Constantine IX Theodora Porphyrogenitus Michael VI Isaac ^I. Constantine X Romanus IV Diogenes Michael VII Doukas Nicephorus III Botaniates Alexios I ^Komnenos John II Comnenus Manuel I ^Komnenos Alexius II Comnenus Andronicus ^I Comnenus Isaac II Angelus Alexis III Ange Alexis Angel IV Nicolas Kanabos Alexius V Doukas Mourzuphles

Eastern Roman Empire
divided
1204 to 1261

Empire of Nicaea	Constantine Lascaris ^I. Theodore Lascaris John III Doukas Vatatzes Theodore II Lascaris John IV Lascaris
Latin Empire of Constantinople	Baudouin ^I. Henry ^I Peter II of Courtenay Robert Courtenay Jean de Brienne Baldwin II of Courtenay