Let's end our visit to the Prado with what is considered their most famous painting:

Velazquez
(1599 - 1660)

Diego Rodríguez de Silva y Velázquez was a Spanish painter, the leading artist in the court of King Philip IV of Spain and Portugal, and of the Spanish Golden Age. He was an individualistic artist of the Baroque period (c. 1600–1750). He began to paint in a precise tenebrist style, later developing a freer manner characterized by bold brushwork. In addition to numerous renditions of scenes of historical and cultural significance, he painted scores of portraits of the Spanish royal family and commoners, culminating in his masterpiece Las Meninas (1656).

https://en.wikipedia.org/wiki/Diego_Velázquez

Las Meninas (The Maids of Honour)
1656-1657
Oil on canvas
318 x 276 cm
Museo del Prado
https://www.museodelprado.es/coleccion/obra-de-arte/wd/9fdc7800-9ade-48b0-ab8b-edee94ea877f