On the night of the eleventh-twelfth, when Mermet and Franceschi had joined him, Soult had collected in Oporto the main body of his army: he had in hand of cavalry Franceschi’s four regiments, and of infantry fifteen battalions of Mermet’s division, seven battalions of Merle’s (forming Reynaud’s brigade), and seven of Delaborde’s, a force in all of about 10,000 bayonets and 1,200 sabres. Only a few miles away, at Baltar, on the road to Amarante, were Caulaincourt’s dragoons and the remaining regiment of Delaborde’s division, an additional force of somewhat over 2,000 men. With 13,000 men at his disposal and a splendid position behind the Douro, he imagined that he might retreat at leisure, maintaining the line of the impassable river for some days more. He intended to hold Oporto long enough to enable Loison to clear the road to Villa Real, and to allow Lorges and the belated troops from the north time to march in to Amarante. He was somewhat vexed to have received no news from Loison for four days, but, when last heard of [on May 7], that general was moving forward into the Tras-os-Montes, with orders to push on and open a way for the army as far as the Spanish border. Silveira having retired to the south bank of the Douro, the Marshal had no doubt that Loison would easily brush away the Ordenanza, and open for the whole corps d’armée the passage to Zamora and the plains of Leon.

Meanwhile the only danger which the Marshal feared was that Wellesley might send forward the fleet of fishing-boats which had carried Hill to Ovar, bring them to the estuary of the Douro, and use them to pass troops across its lowest reach, just within the bar at its mouth. Accordingly he told Franceschi to patrol carefully the five miles of the river that lie between Oporto and the sea. The infantry was comfortably housed in the city, with pickets watching the quays: every boat on the river, as it was supposed, had either been destroyed or brought over to the north bank. Wellesley would, as Soult calculated, be compelled to spend several days in making his preparations for passing the Douro, since he had no means of pushing his army across the broad stream, save the fishing-smacks which he might bring round from the lagoon of Ovar.

The Marshal therefore was quite at his ease, even though he knew that Wellesley’s vanguard was at Villa Nova in force. He imagined that he could count on ample time for the evacuation of Oporto, and began to make arrangements for a leisurely retreat. His first care was to send off eastward all his convalescents, his reserve ammunition, and his wheeled vehicles, of which he had collected a fair supply during his seven weeks’ halt at Oporto. These were to march, under the convoy of Mermet’s division, during the course of the morning. The other troops from Merle’s and Delaborde’s divisions, together with Franceschi’s horse, were to watch the lower Douro and check any attempt of the British to cross. The Marshal was himself lodged at a villa on the high ground west of the city, from which he commanded a fine view of the whole valley from Oporto to the sea: the view up-stream was blocked by the hill crowned by the Serra Convent, where the river makes a slight bend in order to get round the projecting heights on the southern bank. So thoroughly were both Soult and his staff impressed with the idea that Wellesley would endeavour to operate below, and not above, the city, that while the lower reaches of the Douro were watched with the greatest care, a very inefficient look-out was kept on the banks above Oporto: there would seem to have been but a single battalion placed in that direction, and this small force was lying far back from the river, with no proper system of pickets thrown forward to the water’s edge. Yet the opposite bank was full of cover, of thickets, gardens and olive groves, screening several lanes and by-paths that had led down to ferries. Such of the boats as had not been scuttled had been brought over to the north bank, but they were not all protected by proper guards. All this was inexcusably careless—the main blame must fall on the Marshal for his parti pris in refusing to look up-stream: though some must also be reserved for General Quesnel, the governor of Oporto, and for Foy, the brigadier whose battalions were in charge of the eastern suburb of the city. But the fact was that none of the French officers dreamed of the possibility that Wellesley might make an attempt, on the very morning of his arrival, to cross the tremendous obstacle interposed in his way by the rolling stream of the Douro. That he would deliver a frontal attack on them in full daylight was beyond the limits of the probable. They had no conception of the enterprise of the man with whom they had to deal.

There was this amount of truth in their view, that the British General would not have made his daring stroke at Oporto, unless he had ascertained that the carelessness of his adversaries had placed an unexpected chance in his hands. By ten o’clock in the morning Wellesley had concentrated behind Villa Nova the whole of his force—the three columns of Paget, Hill, and Sherbrooke were now up in line. They were kept out of sight of the enemy, some in the lateral lanes of the suburb, but the majority hidden behind the back slope of the hills, where orchards and vineyards gave them complete cover from observers on the northern bank.

While the troops were coming up, Sir Arthur mounted the Serra height, and reconnoitred the whole country-side from the garden of the convent. He had with him Portuguese notables who were well acquainted with Oporto and its suburbs, including several persons who had come over the river on the preceding day, and could give him some notion of the general disposition and emplacement of the French army. Sweeping the valley with his glasses he could see Franceschi’s vedettes moving about on the heights down-stream, and heavy columns of infantry forming up outside the north-eastern gates of the city. At eleven o’clock this body moved off, escorting a long train of wagons—it was Mermet’s division starting for Amarante in charge of Soult’s convoy of sick and reserve artillery. On the quays, below the broken bridge, many French pickets were visible, ensconced at the openings of the streets which lead down to the water. But turning his glass to the right, Wellesley could note that up-stream matters looked very quiet, the rocky banks above the deep-sunk river were deserted, and nothing was visible among the gardens and scattered houses of the south-eastern suburb. It was possible that French troops might be ensconced there, but no sign of them was to be seen.

Many intelligence-officers had already been sent off, to scour the southern bank of the river, and to ascertain whether by any chance the enemy had overlooked some of the boats belonging to the riverside villages. In a short time two valuable pieces of news were brought up to the Commander-in-chief. The large ferry-boat at Barca d’Avintas, four miles above the city, had been scuttled, but not injured beyond the possibility of hasty repairs. It was already being baled out and mended by the villagers. Nearer at hand a still more important discovery was made. Colonel Waters, one of the best scouts in the army, had met, not far south of the suburban village of Cobranloes, an Oporto refugee, a barber by trade, who had crossed over from the north bank in a small skiff, which he had hidden in a thicket. The man reported that the opposite bank was for the moment unguarded by the French, and pointed to four large wine-barges lying stranded below the brink of the northern shore, with no signs of an enemy in charge. Yet the position was one which should have been well watched: here a massive building, the bishop’s Seminary, surrounded by a high garden wall, lies with its back to the water. It was an isolated structure, standing well outside the eastern suburb, in fairly open ground, which could be easily swept by artillery fire from the dominating position of the Serra heights. Waters had with him as guide the prior of Amarante, and by his aid collected three or four peasants from the neighbouring cottages. After some persuasion from the ecclesiastic, these men and the barber consented to join the British officer in a raid on the stranded barges on the further bank. It was a hazardous undertaking, for one French picket had lately been seen to pass by, and another might appear at any moment. But the necessary half-hour was obtained; Waters and his fellows entered the barber’s skiff, crossed the river unseen, got the four barges afloat, and returned with them to the southern bank. They turned out to be big clumsy vessels, capable of holding some thirty men apiece. The explorer had noted that the Seminary buildings above were perfectly empty.

On receiving this intelligence, Wellesley resolved to take the chance which the fates offered him. If the French had shown themselves alert and vigilant, he could not have dared to throw troops across the river into their midst. But they seemed asleep at high noon, and their manifest negligence encouraged him. His mind was soon made up: he ordered Murray with two battalions of his brigade[417], two guns, and two squadrons of the 14th Light Dragoons, to march hard for Barca d’Avintas, cross on the ferry, and seize a position on the opposite bank capable of being defended against superior numbers. But this (as the small force employed sufficiently demonstrates) was only intended as a diversion. The main blow was to be delivered nearer at hand. Wellesley had resolved to endeavour to seize the abandoned Seminary, and to throw his main body across the river at this point if possible. The local conditions made the scheme less rash in fact than it appears on the map. The east end of the Serra hill completely commands all the ground about the Seminary: three batteries[418] were quietly pushed into the convent garden and trained upon the roads leading to that isolated building—one along the shore, the other further inland. If the place could once be seized, it would be possible to protect its garrison by fire across the water. There were only two artillery positions on the French bank, from which the Seminary could be battered: one, close to the water’s edge, was completely under the guns of the Serra convent. The other, on the heights by the chapel of Bom Fin, was rather distant, and could not be used against boats crossing the river, as they would be invisible to gunners working on this emplacement. Cannon placed there might do some damage to the Seminary buildings, but could not prevent the garrison from being reinforced. Realizing all this at a glance, Wellesley hurried down Hill’s brigade to the water’s edge, and the moment that the leading company of the Buffs had got on board the barges, bade them push off. In a quarter of an hour the first vessel was over, and a subaltern and twenty-five men rushed up into the empty enclosure of the Seminary, and closed the big iron gate opening into the Vallongo road, which formed its only land-exit. The men from the other barges were just behind: they set themselves to lining the garden wall and to piling up wood and earth against it, in order to give themselves a standing-place from which they could fire over the coping. The barges went back with all speed, and were again loaded and sent off. Meanwhile Wellesley and his staff were looking down in breathless anxiety on the quiet bend of the river, the silent suburb, and the toiling vessels. At any moment the alarm might be given, and masses of the enemy might debouch from the city and dash in upon the Seminary before enough men were across to hold it. For the best part of an hour the Commander-in-chief must have been fully aware that his daring move might end only in the annihilation of two or three companies of a good old regiment, and a check that would appear as the righteous retribution for recklessness.

But no stir was seen in Oporto: the barges crossed for a second time unmolested: on their third trip they carried over General Edward Paget, whom Wellesley had placed in command of the whole movement. More than half the Buffs had passed, and the Seminary was beginning to be adequately manned, when at last some shots were heard outside the gates, and a few minutes later a line of French tirailleurs, supported by three battalions in column, came rushing down upon the enclosures. A full hour had passed between the moment when the first boatload of British soldiers had been thrown across the river, and the time when the French discovered them!

WELLESLEY’S PASSAGE OF THE DOURO.
N.B. The trees on the cliff to the right are close outside the enclosure of the Serra Convent: the roof of the Seminary is just visible over the crest of the hill on the other bank. In the background are the low slopes above Avintas.