Pachomius I was the 172nd Patriarch of Constantinople. He served for two terms, from 1503 to 1504 and then again, after a gap of less than a year, from 1504 to 1513. His date of birth and early life is not known. He was the Metropolitan of Zichna before he became Patriarch of Constantinople. He came to the throne amid infighting and intrigues within the Christian “nation”, particularly with the partisans of Joachim I who had been patriarch before Pachomius’ predecessor, Nephon II. Pachomius was deposed, in favor of Joachim I, for his inability to meet the financial needs of the Patriarchate.