Tags: Christian Bishop.
Symeon I of Trebizond (Greek: Συμεών Α΄ o Τραπεζούντιος) was Ecumenical Patriarch of Constantinople three times: for a short time in 1466 from 1471 to 1475 and from 1482 to 1486. In 1484 he presided over the Synod of Constantinople of 1484 which repudiated the Union of Florence.