Patriarch Isidore I of Constantinople
Early life 
Little is known of his early life. Isidore was born in Thessaloniki during the latter part of the 1290s where he became a teacher and spiritual guide.
Synod of 1344 
In 1345, Isidore, who was at the time the bishop elect of Monemvasia, and Gregory Palamas were excommunicated by a synod of anti-hesychast bishops that had been convened by Patriarch John XIV Kalekas who himself was an opponent of St. Gregory.
Palamas and Buchiras recanted.
Synods of 1347 
In February 1347, during a synod convened by emperor John VI Kantakouzenos, Patr. John XIV was deposed and Isidore brought back and elected to succeed John XIV as patriarch of Constantinople. Upon becoming patriarch, Isidore released Gregory Palamas from prison and consecrated him Archbishop of Thessalonica.
During the two and a half years of his patriarchate, Isidore sought to have the whole Byzantine Church accept the Palamite dogmas. He selected bishops only from the Palamite party. He instituted harsh penalties for those who refused to submit.
See also 
|Orthodox Church titles|
|Patriarch of Constantinople
1347 – 1350
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