It was somewhere about the year 333 A.D. that a boy was born at Treves in the house of the governor, and called Ambrose, after his father. He was the youngest of three children, his brother Satyrus being only a little older than himself, while Marcellina, their sister, who was nearly four, looked down upon the others as mere babies. Ambrose the elder was a very important person indeed, for the emperor Constantine had made him ruler, or prefect, of the whole of Europe west of the Rhine, that is, of Spain, Gaul or France, and Britain. The prefect was a good and just man, and the nations were happy under his sway; but he died after a few years, and his wife, unfortunately, thought it wiser to leave Treves and take her children to Rome, where they could get the best teaching and would become acquainted with their father's friends. It was a long and difficult journey for a lady and two boys (Marcellina had already gone to a convent in Rome), though they were rich enough to travel in tolerable comfort. Even in summer the passage of the Alps was hard enough, and the towering mountains, steep precipices, and rushing rivers must have seemed strange and alarming to anyone fresh from the fertile slopes of the Rhineland. But the boys were not frightened, only deeply interested, and they quite forgot to be sorry at leaving their old home in the excitement of what lay before them. No doubt they had many adventures, or what they would have considered as such, before they reached the corn-covered plains of Lombardy, and stopped to rest in the city of Milan, whose name was hereafter to be bound up for all time with that of little Ambrose. But we are not told anything about their travels, and when they arrived in Rome they went straight to the old house, which had been for generations in their father's family. That family was famous in the annals of the city, and had become Christian in the time of the persecution; but nowadays Christians and pagans lived happily together, and divided the public offices between them. The children soon settled down in their new surroundings, and felt as if they had lived all their lives in Rome. Marcellina they seldom or never saw, and, however much her mother may have longed after her, she was forced to content herself with her two boys and to take pride in their success. * * * * *