[1] In 1867, Spain and Chile had reached a preliminary agreement to receive the warships embargoed by the British neutrality laws, which caused the diplomatic incident between Peru and Chile in 1868.

[2] In 1871, an armistice was signed in Washington, D.C. between Spain and allies Peru and Chile.

In 1881, the Chilean government allowed the arrival of Spanish merchant ships to its ports in recognition of the protection provided by Spanish merchants to the Chilean victims of the Battle of Iquique.

[3] The representatives for the treaty were Jovino Novoa for Chile and Enrique Vallés for Spain, who signed the treaty in the Peruvian city of Lima, during its occupation by Chile.

[1] Chilean president Domingo Santa María put it into effect in Chile on May 21, 1884.