ca. 1310: Birth of John Lazaropoulos in Trebizond
shortly before 1340: John Lazaropoulos is assigned skeuophylax at the church of Aghia Sophia in Trebizond
1340: He abandons Trebizond and seeks refuge in Constantinople
1349: He returns to Trebizond and enters the circle of emperor Alexios III Grand Komnenos
19 March 1364: Death of the metropolitan of Trebizond Niphon. Lazaropoulos is elected new metropolitan, receiving the name Joseph. He departs for Constantinople
13 April 1365: Joseph Lazaropoulos returns from Constantinople to Trebizond
15 April 1365: Joseph Lazaropoulos is enthroned metropolitan of Trebizond
12 November 1367: Joseph Lazaropoulos resigns from the metropolitan throne and retires to Eleousa monastery
end of 1367: He departs for Constantinople
1368: Temporary return to Trebizond
July 1368: Final settlement in Constantinople
before December 1369: Death of Joseph Lazaropoulos in Constantinople