Page "Council of Constance" Paragraph 19

John of Falkenberg proved to be the fiercest opponent of the Poles.

In his Liber de doctrina, Falkenberg argued that " the Emperor has the right to slay even peaceful infidels simply because they are pagans (...).

The Poles deserve death for defending infidels, and should be exterminated even more than the infidels ; they should be deprived of their sovereignty and reduced to slavery.

" In Satira, he attacked Polish King Jogaila, calling him a " mad dog " unworthy to be king.

Falkenberg was condemned and imprisoned for such libel, but was not officially accused of heresy.

Other opponents included Grand Master's proctor Peter Wormditt, Dominic of San Gimignano, John Urbach, Ardecino de Porta of Novara, and Bishop of Ciudad Rodrigo Andrew Escobar.

They argued that the Knights were perfectly justified in their crusade as it was a sacred duty of Christians to spread the true faith.

Cardinal Pierre d ' Ailly published an independent opinion that attempted to somewhat balance both Polish and Teutonic positions.