The Earl of Sidney mustered his forces to proceed against the rebels, and the Earl of Ormond was sent over from England to detach his brother Sir Edmund Butler from his alliance with the Desmonds. The Archbishop of Cashel was dispatched into Spain to seek the assistance of Philip II. (1569), and he brought with him a document purporting to be signed by thirteen archbishops and bishops, and by most of the leading Irish and Anglo-Irish nobles in Leinster, Munster, and Connaught, asking the King of Spain to assist them in their defence of the Catholic religion, and offering to accept as their sovereign any Spanish or Burgundian prince whom Philip II. might wish to nominate.[68] The fact that the Pope had published in February 1570 the Bull, /Regnans in excelsis/ announcing the excommunication and deposition of Queen Elizabeth served to encourage the Catholics of Munster, but notwithstanding this sentence the archbishop failed to obtain any effective assistance either from Spain or from the Pope. Undaunted by the ill-success of his agent, Fitzmaurice issued a proclamation addressed to the prelates, princes, and lords of Ireland, announcing that he had taken up arms against a heretical ruler who had been excommunicated and deposed by the Pope, that a large body of English Catholics were in rebellion or were ready to rise, that he had been appointed by the Pope captain-general of the Irish Catholic forces, and that it behoved them to rally to his standard to defend the Catholic faith, to suppress all false teachers and schismatical services, and to deliver their country from heresy and tyranny.[69] Fitzmaurice was, however, disappointed in his hopes. The Earl of Ormond hastened over to Ireland to hold the Butler territories for the queen. Many of his confederates deserted him or were overthrown, and after a long struggle he was overcome and obliged to make his submission (1573-74).