St. Valentine, Not St. John, Is the Patron Saint of Epilepsy

Contrary to occasional confusion, Saint Valentine (3rd-century Roman martyr) is the traditional patron saint of epilepsy. Saint John the Baptist is associated with other patronages (e.g., baptism, converts, motorways). The link likely arises from Valentine’s feast day (Feb 14) coinciding with ancient Roman purification festivals, later Christianized.