The Spaniards remained, however, in Milaness, ready to burst again upon the Duke of Mantua. The king was in a hurry to return to France in order to finish the subjugation of the Reformers in the south, commanded by the Duke of Rohan. The cardinal placed little or no reliance upon the Duke of Savoy, whose “mind could get no rest, and going more swiftly than the rapid movements of the heavens, made every day more than twice the circuit of the world, thinking how to set by the ears all kings, princes, and potentates, one with another, so that he alone might reap advantage from their divisions. [_Memoires de Richelieu,_ t. iv. p. 375.] A league, however, was formed between France, the republic of Venice, the Duke of Mantua, and the Duke of Savoy, for the defence of Italy in case of fresh aggression on the part of the Spaniards; and the king, who had just concluded peace with England, took the road back to France. Scarcely had the cardinal joined him before Privas when an imperialist army advanced into the Grisons, and, supported by the celebrated Spanish general Spinola, laid siege to Mantua. Richelieu did not hesitate: he entered Piedmont in the month of March, 1630, to march before long on Pignerol, an important place commanding the passage of the Alps; it, as well as the citadel, was carried in a few days; the governor having asked for time to “do his Easter” (take the sacrament), Marshal Crequi, who was afraid of seeing aid arrive from the Duke of Savoy, had all the clocks in the town put on, to such purpose that the governor had departed and the place was in the hands of the French when the re-enforcements came up. The Duke of Savoy was furious, and had the soldiers who surrendered Pignerol cut in pieces.