S. Isidore of Pelusium, in Egypt, was a monk from his youth. Suidas asserts that he was promoted to the dignity of the priesthood. In the time when the turbulent Theophilus was patriarch of Alexandria, Isidore espoused the cause of S. Chrysostom, praised his writings and doctrine, and consequently became an object of hostility to the proud patriarch. On the death of Theophilus, S. Cyril, his nephew, succeeded him, and, as has already been related in the life of that saint, inherited his uncle's prejudices against the great Chrysostom, and after his death opposed the insertion of his name in the diptychs, or list of persons who were commemorated at the Holy Eucharist. But by the influence of S. Isidore, who earnestly strove to bring councils of peace before Cyril, the patriarch of Alexandria was induced to withdraw his objections. The letters of S. Isidore are extant. S. AVENTINE OF TROYES, H. (ABOUT A.D. 538.) [Roman Martyrology, and that of Usuardus, on Feb. 4th; but in the diocese of Troyes, on Feb. 6th, as a semi-double. Authorities:--A very ancient life, written in crude style; mention by S. Gregory of Tours, and in two extant lives of S. Fidolus.] S. Aventine was much beloved and respected for his singular virtues by S. Camelian, Bishop of Troyes, who made him steward of the possessions of the church. He afterwards became the abbot of a monastery at Troyes, and spent all the money he could collect in redeeming captives. During the reign of Thierry, son of Clovis, he purchased of a band of soldiers, who were leading captives past his door, the boy Fidolus, whom for his gentleness and piety he learned greatly to love; and treating him as a son rather than as a servant, he made of him a monk, and finally, when he himself was old, and Fidolus had grown to man's estate, with the consent of the monks, he delivered over into his hands the government of the monastery, and he himself retired into a lone hermitage in the forest, and spent many years in a cave. When he opened his window, and thrust forth his hand full of crumbs, multitudes of little birds came fluttering up, and perched on his fingers, and ate the crumbs. He was ministered to by a monk, who, in bringing water from the river, sometimes caught in the pitcher very little fish. The gentle Aventine invariably returned the small fish to the river, for he would not hurt or destroy any animal, unless it were necessary. One day he trod on a snake and crushed it, so that it lay numb, and as though lifeless. Then he bent over it, and cherished it, till life returned, and it glided away. Once a stag, pursued by hunters, took refuge in his cave, and he closed the door on it, and hid it, till the hunters had passed further. One stormy night, a bear came roaring to the door of the cell, and strove to beat it in. The hermit, in terror, sang the song, "Thou wilt not leave my soul in hell, neither wilt Thou suffer Thy holy one to see corruption!" and armed himself with prayer.