Joseph I of Constantinople

Saint

Joseph I of Constantinople
Ecumenical Patriarch of Constantinople
Seal of Joseph I, patriarch of Constantinople, in lead (1268-1274)
ChurchChurch of Constantinople
In office28 December 1266 –
9 January 1275
31 December 1282 –
23 March 1283
PredecessorGermanus III of Constantinople
John XI of Constantinople
SuccessorJohn XI of Constantinople
Gregory II of Constantinople
Personal details
Born
Joseph Galesiotes
Died23 March 1283
DenominationEastern Orthodoxy

Joseph I of Constantinople (Greek: Ἰωσὴφ Γαλησιώτης; fl.1222 - died 23 March 1283) was a Byzantine monk who served twice as Ecumenical Patriarch of Constantinople, from 1266 to 1275 and from 1282 until shortly before his death on 23 March 1283. He is most notable as an opponent of Emperor Michael VIII Palaiologos' plans to unite the Eastern Orthodox Church with the Catholic Church, for which he is recognized as a confessor by the Orthodox Church.