The basilica almost reached its final form with the Berninian reconstruction. The last important addition happened during the pontificate of Innocent XI. His Secretary of State, Cardinal Alderano Cybo demolished the old family chapel (the second on the right) and built the sumptuous Baroque Cybo Chapel on its place that was designed by Carlo Fontana between 1682 and 1687. The large domed chapel was decorated with paintings by Carlo Maratta, Daniel Seiter and Luigi Garzi. It is regarded one of the most significant sacral monuments erected in Rome in the last quarter of the 17th century.