34 During the barbarian invasions of the Middle Ages, we see men and women of royal rank and even workmen and valiant Christian women of the common people using every endeavor to convert their fellow citizens to the religion of Jesus Christ and to fashion their morals according to its pattern, so as to safeguard both religion and the state from approaching danger. Tradition tells us that when our immortal Predecessor, Leo the Great, courageously opposed Attila, when he invaded Italy, two Roman consuls stood by his side. When formidable hordes of Huns were besieging Paris, the holy virgin Genevieve, who was given to a life of continuous prayer and austere penance, cared for the souls and bodies of her fellow citizens with wondrous charity. Theodolinda, Queen of the Lombards, zealously summoned her people to embrace the Christian religion. King Reccaredus of Spain endeavored to rescue his people from the Arian heresy and to lead them back to the true Faith. In France, there were not only bishops, such as Remigius of Rheims, Caesarius of Arles, Gregory of Tours, Eligius of Noyon and many others, who were eminent for virtue and apostolic zeal, but queens also can be found during that period who taught the truths of Christianity to the untutored masses and who gave food and shelter and renewed strength to the sick, the hungry and the victims of every human misfortune. For example, Clotilda so influenced Clovis in favor of the Catholic religion that she had the great joy of bringing him into the true Church. Radegunda and Bathilda cared for the sick with supreme charity and even restored lepers to health. In England, Queen Bertha welcomed St. Augustine when he came to evangelize that nation and earnestly exhorted her husband Ethelbert to accept the teachings of the Gospel. No sooner had the Anglo-Saxons, of both high and low degree, men and women, young and old, embraced the Christian faith, than they were led as though by divine inspiration to unite themselves to this Apostolic See by the closest bonds of piety, fidelity and devotion.
Source: Evangelii Praecones (Vatican.va)