<prompt> Translate the following text to SwahiliThe elegant 17th- and 18th-century facades of the Palais des Ducs conceal the underlying Renaissance structures of the dukes heyday, but many of their treasures remain to be seen inside, in the Mus??e des Beaux-Arts.  <response>: Maonyesho ya kifahari ya karne ya 17 na 18 ya Palais des Ducs huficha miundo ya Renaissance ya msingi ya enzi ya duchi, lakini hazina zao nyingi bado zinaweza kuonekana ndani, katika Musée des Beaux-Arts. 