Admiral John Jervis sailed Self_motion for Lisbon after the engagement , frustrated Influence at the escape Escaping of several valuable prizes including the `` Santísima Trinidad '' .

The First Sea Lord thought Coming_to_believe that the ease of Jervis ' victory over José de Córdoba y Ramos guaranteed Commitment a successful attack Attack on that southern harbour .

Jervis ' ships besieged Besieging Cádiz but were repelled Removing by unexpected Spanish resistance .

With a clear advantage in the harbour 's shallow waters , these vessels manoeuvred Practice in the darkness and savaged Attack Jervis ' heavy ships of the line , striking Attack at their vulnerable areas with impunity .

In April Jervis shifted Change his gaze Perception_active to Tenerife upon hearing Know that Spanish treasure convoys from America arrived Arriving regularly at that island .

Encouraged Influence by this success , Jervis dispatched Sending a small squadron under recently promoted Cause_to_make_progress Rear Admiral Horatio Nelson with the aim of seizing Santa Cruz by means of an amphibious attack Attack .