The Primate's Palace is a neoclassical palace in the Old Town of Bratislava the capital of Slovakia. It was built from 1778 to 1781 for Archbishop József Batthyány, after the design of architect Melchior Hefele. In 1805, the Palace's Hall of Mirrors saw the signing of the fourth Peace of Pressburg, ending the War of the Third Coalition. Today, it serves as the seat of Mayor of Bratislava.