His Eminence Archbishop, Geron of America, Demetrios (Trakatellis), was born in Thessaloniki in 1928. He attended the School of Theology at the National and Kapodistrian University of Athens, graduating with distinction in 1950. He was ordained a deacon in 1960 and in 1964 a priest. In 1967 he was elected Bishop of Vresthena. In 1968, he was elected Metropolitan of Attika and Megaris, but he did not accept the post for reasons related to the canonical order of the Church and to the political conditions in Greece at that time. In 1972 he was awarded a Ph.D. "with distinction" by the Harvard Graduate School of Arts and Sciences, and later, in 1977, he earned a second doctorate, namely a Th.D. in Theology from the University of Athens “with distinction.”
On August 19, 1999, he was elected Archbishop of America by the Holy and Sacred Synod of the Ecumenical Patriarchate. Archbishop Demetrios was enthroned on September 18 in New York City. He served as the Distinguished Professor of Biblical Studies and Christian Origins at Holy Cross Greek Orthodox School of Theology in Brookline, Massachusetts, while also teaching at Harvard Divinity School as Visiting Professor of New Testament. He has published numerous books and articles of scientific and theological content. He has participated in hundreds of scientific and theological conferences in Europe and America. The Archbishop, in addition to Greek, is also well versed in English, French, German, Hebrew, Latin, Aramaic and the Coptic language. He is considered one of the most important ecclesiastical and theological personalities of the Orthodox Church.