HMS Blenheim was a 90-gun second-rate ship of the line of the Royal Navy, built by Israel Pownoll and launched on 5 July 1761 at Woolwich. In 1797 she participated in the Battle of Cape St Vincent. In 1801 Blenheim was razeed to a third rate. She disappeared off Madagascar with all hands in February 1807.

The ship Cumberland was launched in 1802 as a 3-decker East Indiaman. She made seven voyages between India and England from 1802 to 1815 for the British East India Company. Her most notable voyage was her second when she fought in the Battle of Pulo Aura against a French squadron. In 1818 the Chilean government arranged for her purchase. When she arrived in Chile the Chileans took her into their navy as San Martín. As part of the First Chilean Navy Squadron she participated in 1818 in the defeat of a Spanish expeditionary force. She was wrecked off the coast of Peru in 1821.