Complex sentence: There he took the name Agostino; and there he would live unknown to the world, far from his home and his people; devoted to exercises of piety, he lived there tranquilly until an unforeseen incident brought him once more before the world.
Split into simpler sentences: There he took the name Agostino; and there he would live unknown to the world, far from his home and his people, devoted to exercises of piety. He lived there tranquilly until an unforeseen incident brought him once more before the world.