Events in the year 1715 in Spain.
Events June 9 – King Philip, ruler of the Crown of Castile and the Crown of Aragon unifies the two realms into a single state, centralizing rule of a unified Kingdom of Spain. July 24 – 1715 Treasure Fleet: A Spanish treasure fleet of 12 ships, under General Don Juan Ubilla, leaves Havana, Cuba for Spain. Seven days later, 11 of them sink in a storm off the coast of Florida (some centuries later, treasure salvage is found from these wrecks). Date Unknown - Around this year, a breech loading firearm is made for Philip V of Spain.
Notable births February 27 – Mateo Aimerich, Spanish philologist (d. 1799) August 25 – Luis González Velázquez, Spanish painter (d. 1763)
Notable deaths February 4 – Martín de Ursúa, Spanish conquistador (b. 1653)
References
The Spanish Treasure Fleets of 1715 and 1733: Disasters Strike at Sea