War of the Pyrenees
The abolition of the French provinces, the War of the Pyrenees and the end of Basque home rule in the Spanish Basque districts—customs on the Ebro river moved to the Pyrenees (1841)—broke definitely the fluent cross-border trade and natural coexistence of the Basque speaking communities around the lower Bidassoa and the Bay of Txingudi, divided as of then by a restricted Spanish-French border.