Some time after the conclusion of the battle, the sailors of his fleet became ravaged by cholera outbreak which was raging on in mainland Portugal, with an appalling loss of life among the crews of his fleet resulting in more deaths from cholera amongst his men than from combat against the Miguelite fleet. Despite this, Napier was able to bring the Liberal fleet and the captured Miguelite prizes safely into Lisbon, which the Miguelites had precipitately abandoned after being defeated by Terceira's army advancing from the south at the Battle of Almada, a major Liberal victory. On 6 July, receiving news of the victory, Dom Pedro named Napier as Viscount Cape St Vincent in the peerage of Portugal. Napier visited Rear-Admiral Sir William Parker who happened to be in the vicinity of the Tagus, and was received according to his Portuguese rank as an Admiral. Though he was subsequently struck off the Royal Navy List at the insistence of the French, he was restored to his rank in the Royal Navy within two years and the battle, largely won by British officers and crews, was viewed in the United Kingdom as maintaining the honour of the Royal Navy, which had reached the apogee of its success during the preceding Napoleonic Wars.