A royal meeting on a sandbank in the river Bidassoa, on 9 November 1615, forever altered the course of European politics. That day, two princesses—Anne of Austria and Elisabeth of France—were exchanged at the border between Spain and France, each destined to marry the other's brother. This double marriage sealed a powerful alliance between the Habsburgs and Bourbons, witnessed by a glittering retinue and recorded in diplomatic dispatches across the continent.

Almost a decade later, Peter Paul Rubens was commissioned to immortalize this event, capturing not only its ceremonial grandeur but also the fragile hopes invested in these unions. In Exchange of the princesses between Spain and France on 9 november 1615 at Hendaye, Rubens chooses the moment when the two processions converge on a specially constructed pavilion, poised between two nations. The eye is drawn to the richly dressed princesses, each surrounded by their respective courts, as they step forward under the watchful gaze of ambassadors and guards. The river forms a symbolic boundary, while the elaborate costumes and banners announce the dignity and stakes of the occasion.

Rubens’s dynamic composition and vibrant palette contrast with the more restrained, formal approach seen in Velázquez’s later court portraits, emphasizing the theatricality and tension of the exchange. The painting was part of a grand series commissioned by the Spanish court to decorate the Torre de la Parada, celebrating the dynastic ties between Spain and France. Over time, it has traveled through royal collections and been studied as a key example of Rubens’s diplomatic commissions. Today, it stands as a testament to the artist’s role as both chronicler and participant in the political theatre of early seventeenth-century Europe.

While the precise medium of the work is not always specified in records, its scale and ambition place it among the most significant history paintings of the Baroque period.