Laudator Temporis Acti

Robert Bartlett, Why Can the Dead Do Such Great Things? Saints and Worshippers from the Martyrs to the Reformation (Princeton: Princeton University Press, 2013), p. 31:

These [early Irish saints] include figures like Ailbe of Emly, who was fostered by a she-wolf (whom he later saved from hunters) and who could produce a hundred horses from a cloud and walk on the sea; or Luguid or Molua of Clonfertmulloe, whose shoe miraculously cleared the beer which was being served at a royal feast but was making the guests vomit — after Luguid's shoe had been dipped in it, "it made everyone very drunk."

Id., p. 88:

Commenting on John the Baptist’s shoe in the church of the Carthusians in Paris, he [Calvin] remarks: "It was stolen twelve or thirteen years ago but they immediately found another one. Indeed, there will never be a shortage of such relics as long as the race of shoemakers endures."<sup>16

16</sup> Ibid. [Traité des reliques], p. 81.

Id., p. 245:

Even an object as humble as a shoe could absorb miraculous power through its regular and close contact with a holy man. Libertinus, prior of the Italian monastery of Fondi around the middle of the sixth century, used to carry with him the shoe of his revered, recently deceased, abbot, Honoratus. One day he encountered a woman clutching her dead baby; she believed he had the power to bring the child back to life. Struggling between humility and pity, Libertinus eventually prayed for the child, then placed Honoratus's shoe upon its chest, and "at his prayers the soul of the child returned to the body."<sup>30

30</sup> Gregory I, Dialogi 1.2.6 (2, p. 28).