ISACCO, saint. - Abbot of Constantinople, who lived in the fourth century and died between 406 and 425. He founded the first monastery of Constantinople and had as his disciple St. DALMAZIA (v.). He upheld the cause of the faith against the Arians during the reign of Valente. Feast day: 30 May.
ISACCO, saint. - Abbot of Monteluco. A native of Syria, he came to Italy in the first half of the sixth century in order to escape the intrigues of the Monophysites. Having settled on Monteluco near Spoleto, he at first led a retired life, then founded a monastery according to the system of the Palestinian lauras; after his death, however, it adopted the Rule of St. Benedetto.
I. was celebrated for his life of prayer, for the healing of the sick, for the deliverance of the possessed, and for his prophetic spirit. His relics are preserved at Spoleto, and his feast is celebrated on 11 April.
Certain writings are attributed to I., especially 63 Sermons, which are, however, by others, perhaps by Isacco di Antiochia, who lived in the fifth century.