Antony IV (? – May 1397) was the

Ecumenical Patriarch of Constantinople The ecumenical patriarch ( el, Οἰκουμενικός Πατριάρχης, translit=Oikoumenikós Patriárchēs) is the archbishop of Constantinople ( Istanbul), New Rome and '' primus inter pares'' (first among equals) among the heads of ...

for two terms, from January 1389 to July 1390, and again from early 1391 until his death. He was originally a

hieromonk A hieromonk ( el, Ἱερομόναχος, Ieromonachos; ka, მღვდელმონაზონი, tr; Slavonic: ''Ieromonakh'', ro, Ieromonah), also called a priestmonk, is a monk who is also a priest in the Eastern Orthodox Church an ...

, possibly from the Dionysiou monastery in

Mount Athos Mount Athos (; el, Ἄθως, ) is a mountain in the distal part of the eponymous Athos peninsula and site of an important centre of Eastern Orthodox monasticism in northeastern Greece. The mountain along with the respective part of the peni ...

. He was deposed during the usurpation of

John VII Palaiologos John VII Palaiologos or Palaeologus ( el, Ἰωάννης Παλαιολόγος, Iōánnēs Palaiológos; 1370 – 22 September 1408) was Byzantine emperor for five months in 1390, from 14 April to 17 September. A handful of sources suggest that ...

in April 1390, and replaced by Macarius, who had already served in the office in 1377–1379. After the restoration of

John V Palaiologos John V Palaiologos or Palaeologus ( el, Ἰωάννης Παλαιολόγος, ''Iōánnēs Palaiológos''; 18 June 1332 – 16 February 1391) was Byzantine emperor from 1341 to 1391, with interruptions. Biography John V was the son of E ...

and Manuel II Palaiologos a few months later, he was restored to his post. He is notable for his correspondence with Jagiello,

Grand Duke of Lithuania The monarchy of Lithuania concerned the monarchical head of state of Lithuania, which was established as an absolute and hereditary monarchy. Throughout Lithuania's history there were three ducal dynasties that managed to stay in power— Ho ...

, urging him to join in a

crusade The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Latin Church in the medieval period. The best known of these Crusades are those to the Holy Land in the period between 1095 and 1291 that were ...

against the Turks along with the Hungarians, and with

Basil I of Muscovy Vasily I Dmitriyevich ( rus, Василий I Дмитриевич, Vasiliy I Dmitriyevich; 30 December 137127 February 1425) was the Grand Prince of Moscow ( r. 1389–1425), heir of Dmitry Donskoy (r. 1359–1389). He ruled as a Golden Horde ...

, to whom he defended not only the universal spiritual authority of the Constantinopolitan patriarchate, but also the universal authority of the

Byzantine emperors This is a list of the Byzantine emperors from the foundation of Constantinople in 330 AD, which marks the conventional start of the Eastern Roman Empire, to its fall to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as ...

, regardless of the actual diminished state of the

Byzantine Empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...

Sources

* 14th-century births 1397 deaths 14th-century patriarchs of Constantinople Byzantine letter writers 14th-century Byzantine monks {{EasternOrthodoxy-bishop-stub