The execution of Cuthbert Mayne was far from being purposed as the opening of a religious persecution. To modern eyes there is something even more revolting than open persecution in a policy which branded every Catholic priest as a traitor and all Catholic worship as disloyalty; but the first step towards toleration was won when the Queen rested her system of repression on purely political grounds. If Elizabeth was a persecutor, she was the first English ruler who felt the charge of religious persecution to be a stigma on her rule. Nor can it be denied that there was a real political danger in the new missionaries. Allen was a restless conspirator, and the work of his seminary priests was meant to aid a new plan of the Papacy for the conquest of England. In 1576, on the death of Requesens, the Spanish governor of the Low Countries, a successor was found for him in Don John of Austria, a natural brother of Philip, the victor of Lepanto, and the most famous general of his day. The temper of Don John was daring and ambitious; his aim was a crown; and he sought in the Netherlands the means of winning one. His ambition lent itself easily to the schemes of Mary Stuart and of Rome; and he resolved to bring about by quick concessions a settlement in the Low Countries, to cross with the Spanish forces employed there to England, to raise the Catholics in revolt, to free and marry Mary Stuart, and reign in her right as an English king. The plan was an able one; but it was foiled ere he reached his post. The Spanish troops had mutinied on the death of Requesens; and their sack of Antwerp drew the States of the Netherlands together in a "Pacification of Ghent." All differences of religion were set aside in a common purpose to drive out the stranger. Baffled as he was, the subtlety of Don John turned even this league to account. Their demand for the withdrawal of the Spanish troops, though fatal to Philip's interests in the Low Countries, could be made to serve the interests of Don John across the seas. In February 1577, therefore, he ratified the Pacification of Ghent, consented to the maintenance of the liberties of the States, and engaged to withdraw the army. He stipulated only for its withdrawal by sea, and for a delay of three months, which was needful for the arrangement of his descent on the English coast. Both demands however were refused; he was forced to withdraw his troops at once and by land, and the scheme of the Papacy found itself utterly foiled. [Sidenote: The Prince of Parma.]