This article examines sermons for the crusade against the Hussite king of Bohemia, George of Poděbrady, preached by Thomas Harder, an Augustinian canon and parish priest in Klosterneuburg, in the summer of 1467. These texts give us a direct insight into how preachers in fifteenth-century parishes might have dealt with the general commission to publicize the crusade, as they incorporate the crusade agenda into the pastoral content. Like his twelfth and thirteenth-century predecessors, Thomas Harder knew how to exploit the penitential and edifying potential of the crusade, combined with concerns for individual religious improvement and moral reform. Through an analysis of intertextual links, this study shows that he also systematically gathered, processed and disseminated topical information relevant to the fight against Bohemian heresy. Although he followed in the footsteps of high medieval crusade preachers in the themes he addressed, he also drew on more contemporary and local sources to inform his discourse and provide explanation of the immediate political circumstances.
