On 29 April, the day after the battle, the siege commenced, but Lévis had not originally intended to besiege Quebec, as he was waiting for reinforcements from France. As a result, he chose not to launch an immediate assault; his troops were too exhausted, and he was uncertain about the reliability of some of the militiamen. Instead, he occupied the hospital outside the city walls and began bringing up the artillery. However, Lévis refused to open fire with any cannon or mortars until he had forty guns in position, intending to unleash a devastating barrage. As the French siege works began to take shape, morale plummeted for the British and teetered on the brink of anarchy. Fearing a wider breakdown in discipline, Murray ordered harsh punishments for offenders. One man was hanged on the spot for endemic drunkenness, and Murray had all the
liquor in the Lower Town poured away or destroyed. Nevertheless, the French siege works were soon being bombarded with considerable accuracy, and by May 1, order, subordination, hope, and almost confidence were completely restored in Murray's army. The city's defences, however, had been shattered by the previous year's bombardment, and it had even been suggested after its capture that the British should simply destroy the fortifications and abandon the city. Instead, work parties had tried to rebuild the fortifications, and Murray also concentrated on erecting defences beyond the city walls. The weakness of the city's defences had a major impact on his decision to confront the French in open battle, rather than remain in the city. In addition, such was the shortage of men that British officers strapped themselves into harnesses to help haul cannon into the Lower Town.
Stalemate As time wore on, it became clear a
stalemate had developed. The French cannons were too weak to batter down the city's defences, and the British were not strong enough to march out and drive off the more numerous French. In a common courtesy during a siege, the two commanders exchanged small gifts of food. Lévis sent
spruce beer and
partridges, while Murray responded with
Cheshire cheese. Victory would go to whoever's ships first came up the St Lawrence carrying reinforcements. On 9 May, a ship arrived off
Pointe-Lévis; the French shouted
Vive Le Roi believing the ship to be theirs, while the anxious British expected the worst. The ship however turned out to be , a 28-gun frigate detached from a
squadron under
Lord Colville who were just outside the Saint Lawrence. A twenty-one-gun salute and the hoisting of the
Union flag turned British fears into sudden joy. Lévis and the French were in despair and realised that Quebec had to be bombarded into submission as quickly as possible before the main British force arrived.
Artillery duel Two days later at noon, the French batteries finally opened against the walls of Québec, which was not built to bear the brunt of heavy shot. Both sides exchanged lively fire till nightfall. A French schooner and two floating batteries passed below Québec to plant a mortar at Beauport. Over the next few days the artillery duel continued. In contrast, the British brought many heavy guns to bear on the French positions, had unloaded a number of guns from the fleet before it had sailed, and had plentiful supplies of ammunition. Gunpowder was the one substance that was in abundance in the shattered town. During this bombardment the French suffered heavily; British shells alone killed 72 and wounded another 133. Just after dusk on May 15, the first of Commodore Colville's five ships of the line appeared below the Île d'Orléans with two fresh British regiments from
Louisbourg. The following morning two more British frigates under Commodore
Robert Swanton arrived after having sailing upstream. Swanton in response to the expressed wishes of Murray, gave orders to and HMS
Lowestoffe, soon followed by , to pass the town and to attack the French vessels under Captain
Jean Vauquelin in the river above. Swanton forced the French to cut their cables and a running battle soon ensued. Swanton eventually drove Lévis's six smaller ones aground, British troops then took the men ashore prisoner. The frigates then lined up against the French trenches to
enfilade them with
grape and
round shot, which forced their abandonment.
French retreat The destruction of the French vessels was a death blow to the hopes of Lévis since they contained his stores of food and ammunition. With the bombardment knocking out his guns and causing casualties, Lévis resolved to wait for the night before he retired after which he hastened to raise the siege, leaving behind his sick and wounded as well as the siege camp. He also gave orders to throw his artillery down the cliff near
Anse-au-Foulon and to distribute provisions to the troops. At 10pm, the army began its march with the cannon having been sent forward. Deserters from Lévis's camp then told Murray that the French were in full retreat from which all the British batteries opened fire at random through the darkness and sent cannonballs
ricocheting over the Plains of Abraham on the heels of the retreating French army. Murray then marched out with five battalions, the grenadiers and the light companies were to fall upon their rear. He pushed over the marsh to
Ancienne-Lorette. The British captured many French stragglers but failed to overtake the main body. The French had already crossed the
Cap-Rouge River, where they remained on the banks of the river. The British naval presence was reinforced on 18 May with the arrival of Lord Colville's squadron, and two days later merchant ships carrying vital supplies started to arrive which thus marked the end of the French siege. ==Aftermath==