Johann Geiler von Kaisersberg
Swiss priest
Died when: 64 years 359 days (779 months)Star Sign: Pisces

Johann Geiler von Kaysersberg (16 March 1445 – 10 March 1510) was a priest, considered one of the greatest of the popular preachers of the 15th century.
He was closely connected with the Renaissance humanists of Strasbourg, whose leader was the well-known Jakob Wimpfeling (1450–1528), called "the educator of Germany".
Like Wimpfeling, Geiler was a secular priest; both fought the ecclesiastical abuses of the age, but not in the spirit of Martin Luther and his adherents.
They looked, instead, for salvation and preservation only in the restoration of Christian morals in Church and State through the faithful maintenance of the doctrines of the Church.
However the moral reforms of Johann Geiler layed the groundwork for the Protestant reformation in Strasbourg.