The historic centre is characterized by many baroque palaces. The Grassalkovich Palace, built around 1760, is now the residence of the Slovak president, and the Slovak government now has its seat in the former Archiepiscopal Palace. In 1805, diplomats of emperors Napoleon and Francis II signed the fourth Peace of Pressburg in the Primate's Palace, after Napoleon's victory in the Battle of Austerlitz. Some smaller houses are historically significant; composer Johann Nepomuk Hummel was born in an 18th-century house in the Old Town.