For five or six years he devoted himself to the instruction and organization of the great body of monks that had grown up around him; but then he once again withdrew into the inner desert that lay between the Nile and the Red Sea, near the shore of which he fixed his abode on a mountain where still stands the monastery that bears his name, Der Mar Antonios. Here he spent the last forty-five years of his life, in a seclusion, not so strict as Pispir, for he freely saw those who came to visit him, and he used to cross the desert to Pispir with considerable frequency. Amid the Diocletian Persecutions, around 311 Anthony went to Alexandria and was conspicuous visiting those who were imprisoned.[1]