Their story
(The surviving account on this page begins partway through the story.)
When Bardo, as a monk, was seen reading a book on the pastor's office, some monks laughed and asked what use it was to him. He answered that some foolish king might make him a ruler one day. When the Emperor Henry II died, Conrad of Franconia became emperor; the empress was Bardo's relative, and he was soon given the abbeys of Kaiserswerth and Hersfield. At court one day, Archbishop Heribert of Mainz admired his richly worked abbot's staff and said it would suit his own hand better. Bardo sent it to him with a wafer-iron (for stamping communion wafers). Told the archbishop had received them "middling well," Bardo said that perhaps they would soon be his again.
And so it happened: when Mainz fell vacant in 1030, the emperor gave it to his wife's kinsman. At Christmas at Goslar, with the emperor present, Bardo preached so poorly, whether from nerves or lack of preparation, that Conrad was mortified to have made what seemed an ignorant monk head of the most influential see in Germany. The next day the bishop of Treves preached with ease and learning, and the court mocked: Bardo was a stick who could not preach; why had the emperor appointed a boorish monk? Conrad sat at table looking as black as a thundercloud. Bardo's friends begged him not to preach the next day, but he said, "To every man his own burden," and preached so excellent and lengthy a sermon that Conrad said the archbishop had restored his appetite and now it felt like Christmas.
As archbishop he remained a monk at heart, eating no meat and living simply. He was generous to the poor, careful in visiting his diocese, and completed the cathedral begun by St. Willigis. In his leisure he tamed a collection of rare birds and fed them from a plate. He was forgiving toward those who wronged him and protected the poor from harsh and unjust magistrates.
Once at dinner, while he spoke of the sin of drunkenness, a young man began to snigger and mock him under his breath. Bardo fixed his eye on him until he turned pale, then handed him a gold dish piled with meat and told him to attend to that instead and stop his mouth with it. He died deeply mourned by his diocese.