Genetic history of the Iberian Peninsula

The ancestry of modern Iberians, comprising the Spanish and Portuguese, reflects the Iberian Peninsula's position in the southwestern corner of Europe and broadly aligns with patterns typical of Southern and Western European populations. As is the case for most of the rest of Southern Europe, the principal ancestral origin of modern Iberians are Early European Farmers who arrived during the Neolithic.

Source: Wikipedia — Genetic history of the Iberian Peninsula (CC BY-SA 4.0)