Lives of the Saints
He was a monk from his youth, and became superior of a monastery in he
neighborhood of that city, in the fifth age. Facundus and Suidas assure us that he
was promoted to the dignity of priest. He was looked upon as a living rule of
religious perfection, and treated by his patriarch, St. Cyril, and the other prelates of
his time, as their father. He chose St. Chrysostom for his model. We have still
extant two thousand and twelve of his letters, abounding with excellent instructions
of piety, and with theological and critical learning[2]. They are concise, and the
style natural, very elegant, agreeable full of fire and penetration. Possevin laments
that they are not in use as a classic author for the Greek language. His prudence
undaunted zeal. profound humility, ardent love of God, and other virtues shine
admirably in them. He died about the year 449.  
See Photius, Bibl. Cod. 232 and 228. Tillem. t. 15, p. 97. Bolland. 4 Feb. p. 468.
See Sayings of the Desert Fathers –Bendicta Ward – p.98.
[1] Butler's Lives of the Saints – February 4.
[2] See Sayings of the Desert Fathers –Bendicta Ward – p.98.
St Isidore of Pelusium   
A.D. 449