[6] His fame grew, and emperor Maximian himself requested that he come to Rome so that his stepdaughter Flavia Maximiana Theodora, who had been possessed by an evil spirit, could be cured by the saint.

[2] Saint-Mathurin de Larchant, a property of the chapter of Notre-Dame de Paris since 1005,[7] was rebuilt beginning in 1153, and the church became a popular pilgrimage site, which Harry Bailey, host of the Tabard Inn of Chaucer's Canterbury Tales was recalling, when he swore "by that precious corpus Madrian".

[2] In Patricia Highsmith's novel The Boy Who Followed Ripley (1980), the two principal characters visit the basilica en route to an outing in the Forest of Fontainebleau.

He was invoked against mental illness and infertility,[2] and the faculty of medicine of the University of Paris kept their great seal safely in the Church of Saint-Mathurin.

[10] Due to his association with madness and mental illness, he also became the patron saint of comic actors, jesters,[11] and clowns.