Conde de Regla was a 112-gun three-decker ship of the line built at Havanna for the Spanish Navy in 1786 to plans by Romero Landa.

Conde de Regla served in the Spanish Navy for three decades throughout the French Revolutionary and Napoleonic Wars.

Although she was a formidable part of the Spanish battlefleet throughout these conflicts, the only major action Conde de Regla participated in was the Battle of Cape St. Vincent in 1797.

The other ships of the class were the Santa Ana, Mejicano, Salvador del Mundo, Real Carlos, San Hermenegildo, Reina María Luisa and Príncipe de Asturias.

In 1797, Conde de Regla was with the Spanish fleet which fought the British at the Battle of Cape St. Vincent.