Located near Piazza Navona the Altemps Palace is one of the most interesting examples of Renaissance architecture in Rome. Erected during the fifteenth century by the Riario family and refurbished a century later under the orders of Cardinal Marco Sittico Altemps, Palazzo Altemps since 1997 it is one of the four seats of the National Roman Museum. The Palazzo Altemps houses an important collection of Greek and Roman sculpture that belonged to several families of the Roman nobility between the sixteenth and seventeenth centuries. The Boncompagni Ludovisi collection spans most of the museum. It consists of more than 100 works, including The Galatian Suicide and the remarkable Grande Ludovisi sarcophagus.