 The final break between Pole and Henry followed upon Thomas Cromwell, Cuthbert Tunstall, Thomas Starkey and others addressing questions to Pole on behalf of Henry.He answered by sending the king a copy of his published treatise "Pro ecclesiasticae unitatis defensione", which, besides being a theological reply to the questions, was a strong denunciation of the king's policies that denied Henry's position on the marriage of a brother's widow and denied the royal supremacy; Pole also urged the princes of Europe to depose Henry immediately.Henry wrote to Pole's mother, the Countess of Salisbury, who in turn sent her son a letter reproving him for his "folly".