The austere facade of the 15th-century Eglise Saint-Jean-Baptiste, where the wedding was celebrated, doesn't prepare you for the characteristic Basque carved oak galleries to separate the various classes of worshippers on three sides of a single nave, with polychrome wooden vaulting and a three-tiered gilded-and-crimson Baroque altar.
The Eglise Saint-Jean-Baptiste, though it looks plain on the outside, is astonishingly ornate on the inside.