St. Peter’s chapel was still standing and attracted many pilgrims when, some four hundred years after its erection, it was enclosed and incorporated in the large Church we now know, called, from her who built it, the Eudoxian Basilica. The name brings before us two Christian Empresses, a mother and daughter, the elder the wife of Theodosius II, Emperor of the East; the younger married to Valentinian III, Emperor of the West. The elder Eudoxia[13] had made a vow to go on pilgrimage to Jerusalem, and when she visited the Holy City, the faithful there presented to her the Chains of St. Peter, which she received with transports of gratitude, holding them more precious than the rarest jewels. Then, having venerated them with great devotion, she sent them as a gift to her beloved daughter Eudoxia, the wife of the Emperor of the West. The young Empress was in Rome at the time, and she at once took the chains to the Pontiff, St. Leo the Great, and he, to her joy and surprise, told her that in return for her piety he would show her the Chains with which St. Peter had been loaded in Rome. Apparently the Empress did not know that they had been preserved and venerated there ever since the beginning of the Second Century. It was some forty years after the martyrdom of St. Peter that the reigning Pope, St. Alexander, was made a captive, and placed under the charge of the Tribune Quirinus, the governor of the Roman prisons. Quirinus had a young daughter named Balbina, who was miraculously cured of a great sickness by touching the chains of St. Alexander. As she knelt in the transports of her joy, she could not cease from kissing and weeping over the blessed chains, and Alexander said to her: “Kiss not my chains, but rather go and find those of the Blessed Peter and kiss them!”