Valdés might be willing to risk a schism, but Philip drew back; it was not to be thought of that the Catholic king should incur excommunication, and he recognized what strength the heretic cause throughout Europe would derive from such a quarrel in such a cause. Still he dallied, until Pius forced Valdés to resign and threatened to lay all Spain under interdict.[219] He had encountered a will stronger than his own and Antonio Tiepolo, the Venetian envoy, is doubtless correct in saying that no other pope but Pius could have carried his point.[220] The pressure became irresistible and he yielded. Carranza, under charge of the hated inquisitor Diego González and guarded by a body of troops, left Valladolid December 5th, reaching Cartagena on the 31st, where he was confined in the castle until April 27, 1567, awaiting the arrival of the voluminous papers of the case, when he was placed on the admiral's ship which was conveying the Duke of Alva on his fateful way to Flanders. Civita Vecchia was reached May 25th and Rome May 28th, where he was confined in the Castle of Sant' Angelo--a second imprisonment that was to last for nine years. It was much less harsh than the previous one; besides his two faithful attendants he was allowed two others; he was assigned apartments in the quarters reserved for archbishops, he was sometimes permitted to leave his room under guard and enjoy the landscape, and at the first jubilee he was admitted to confession, although communion was still denied.[221]