 The Viceroy of Aragon advanced to Oloron in Béarn and laid siege to the town, while the army of the Prince of Orange Philibert of Chalon failed to take Bayonne.Frustrated at his failure, on his withdrawal south Philibert devastated Ustaritz, and sacked Biarritz and Saint-Jean-de-Luz (Donibane Lohizune).Other towns and villages inland straddling the Navarre-Béarn border were also devastated.