He was therefore handed off at the age of five to Berthold, bishop of Toul, who established a school for the sons of nobility. At the age of 15, Bruno became a canon at St. Stephen's Cathedral in Toul. In 1024, his father's cousin Conrad became Emperor, and Bruno was chosen to serve in the imperial chapel. Two years later, the then-bishop of Toul died and Bruno took over the diocese, managing it for the next two decades.
During that time he exerted his influence to reform and raise the moral standards of monasteries and the regular clergy in his diocese. He favored spreading Cluniac rules. When Pope Damasus II died in 1048, the emperor and Roman delegates at an assembly in Worms agreed that he should become pope. Bruno anted instead to travel to Rome and have a proper election. He arrived in Rome wearing pilgrim garb in early 1049, where he was duly elected and took the name Leo IX.
He immediately called a synod for that Easter. At the synod, he demanded celibacy for all clergy down to the rank of subdeacon, and said simony, the practice of selling church positions, had to stop. He traveled to Mainz to meet with Italian, French, and German clergy to declare his positions. At another Easter synod in 1051 he discussed the potential re-ordination of those priests who had been defrocked because their positions had originally been purchased through simony. These decisions all seemed to be sensible.
Leo's real challenge was with the Eastern Church. The Patriarch of Constantinople, Michael I Cerularius, criticized some of the positions of the Roman/Latin Church, particularly fasting the day before Sunday Mass and the use of unleavened bread. Michael's letter was addressed to Leo as "brother" instead of "father."
Leo's response was to remind that Michael that the pope "owned" the entire Byzantine Church. Leo did not make this idea up on his own; he had documentation to "prove" it! Why he thought that will be explained tomorrow.