Saint Abraham the Poor (also Saint Abraham the Child) was a fourth century Egyptian hermit. His nicknames of "the poor" and "the child" refer to his simple life and simple faith. Born in the town of Menuf, he became of disciple of Saint Pachomius, who founded cenobitic monasticism, in the Delta river region of the Nile River. He remained a disciple of Saint Pachomius for 23 years, after which he spent the following seventeen as a cave hermit. Wikipedia
The definitive Wikipedia entry for Abraham The Poor. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Abraham_the_Poor