 The benedictial balcony at its centre is clearly mirrored on the balcony of St. Peter's Basilica in Rome.But this balcony is rather intended for the king, as a symbol of his power, than for the benedictions by a prelate.The two church towers (68 m high) are inspired by the towers of Sant'Agnese in Agone (by the Roman Baroque architect Francesco Borromini).