In the meantime, sanguinary riots broke out afresh at Madrid, hundreds of French were massacred, and the insurrection, as it was called, though sternly put down by Murat, spread like wildfire into all parts of Spain. A violent explosion of patriotism, resulting in anarchy, followed throughout the whole country. Napoleon was taken by surprise, but the combinations which he matured at Bayonne for the conquest of Spain were as masterly as those by which he had well-nigh subdued the whole continent, except Russia. He established a base of operations in the centre of the country, and organised four campaigns in the north-west, north-east, south-east, and south. Savary, who had succeeded Murat at Madrid, was supposed to act as commander-in-chief, but was really little more than a medium for transmitting orders received from Napoleon at Bayonne. The campaign of Duhesme in Catalonia was facilitated by the treacherous seizure of the citadel of Barcelona in the previous February. It was not long, however, before effective aid was rendered on the coast by the British fleet under Collingwood, and especially by Lord Cochrane in the _Impérieuse_ frigate; the undisciplined bands of Catalonian volunteers were reinforced by regular troops from Majorca and Minorca; the fortress of Gerona made an obstinate resistance; the siege of it was twice raised, and Barcelona, almost isolated, was now held with difficulty. [Pageheading: _FRANCE OCCUPIES THE PENINSULA._] Marshal Moncey vainly besieged Valencia, while Generals Lefebvre-Desnoëttes and Verdier were equally unsuccessful before Zaragoza. In the plains of Leon, Marshal Bessières gained a decisive victory over a superior force of Spaniards under Cuesta and Blake, at Medina de Rio Seco, on July 14. Having thus secured the province of Leon, and the great route from Bayonne to Madrid, he was advancing on Galicia when his progress was arrested by disaster in another quarter. General Dupont, commanding the southern army, found himself nearly surrounded at Baylen, and solicited an armistice, followed by a convention, under which, "above eighteen thousand French soldiers laid down their arms before a raw army incapable of resisting half that number, if the latter had been led by an able man".[42] The convention, signed on July 20, stipulated for the transport of the French troops to France, but its stipulations were shamefully violated; some were massacred, others were sent to sicken in the hulks at Cadiz, and comparatively few lived to rejoin their colours. Meanwhile a so-called "assembly of notables," summoned to Bayonne, consisting of ninety-one persons, all nominees of Napoleon, assumed to act for the whole nation, had accepted the nomination of Joseph Bonaparte as king, and proceeded to adopt a constitution. On July 20, the very day of the capitulation of Baylen, Joseph entered Madrid, and on the 24th was proclaimed King of Spain and the Indies. But the military prestige of the grand army