The Primate's Palace (Slovak: Primaciálny palác) is a neo-Classical palace in Bratislava's Old Town. It was built from 1778 to 1781 for Archbishop József Batthyány, who was a Hungarian after the design of architect Melchior Hefele. The palace and its most famous chamber, the Hall of Mirrors, have played host to many significant events. Perhaps the most famous of them is the signing of the fourth Peace of Pressburg by Johann I Josef, Prince of Liechtenstein, Ignácz Gyulay and Charles Maurice de Talleyrand in 1805 after the Battle of Austerlitz, which effectively ended the War of the Third Coalition.