Santa Dorotea was built in
Ferrol in 1775. In 1798, she was assigned to a small frigate squadron under Commodore Don
Felix O'Neil and departed Cartagena in company with the frigates
Pomona,
Proserpine, and
Santa Cazilda on 8 July.
Santa Doroteas captain for the expedition was Don Manuel Gerraro. Dixon approached the squadron, closing on
Santa Dorotea, which had begun to fall behind her consorts, having lost a topmast sometime earlier. Realizing that Manley was attempting to cut off and engage
Santa Dorotea, O'Neil ordered the front three frigates to turn around and sail to her defence. They passed close to the
Lion, commencing fire at 11:15.
Lion outgunned
Santa Dorotea by nearly two to one and was able to rapidly inflict severe damage on her. Within minutes her mizzenmast had fallen and her mainmast and rudder were severely battered. O'Neil gave up attempting to relieve the beleaguered
Santa Dorotea and made for Cartagena at 13:10. Isolated and unable to escape, Gerraro surrendered. Although ''Lion's
rigging had been badly torn, there was no structural damage at all. Securing his prize, Dixon spent the next day conducting extensive repairs before sending Santa Dorotea'' to Earl St Vincent off Cadiz. One of the Spanish prisoners taken was the future
Argentine general
José de San Martín, who at the time was a staff member on
Santa Dorothea. In 1847, the Admiralty authorized the issuance of the
Naval General Service Medal with the clasp "LION 15 JULY 1798" to the remaining British survivors of the action. ==British career==