the building became a center of baroque musical life in pozsony/pressburg. joseph haydn premiered some of his works here. count grassalkovich also had his orchestra and his "colleague", prince esterházy, used to "lend" him his favorite conductor, haydn. grassalkovich was maria theresa's vassal, so the palace was used for various balls and parties of the habsburg royal court. for example, it was haydn who conducted the orchestra when maria theresa's daughter married albert of sachsen-teschen, then governor of the kingdom of hungary (see bratislava castle). ľudovít štúr is said to have declared his love to adela ostrolúcka for the first time during a ball organized by archduke stephen francis victor (buda 14 september 1817 – menton 19 february 1867), son of the palatine, joseph. the last owners of the palace before the end of austria-hungary were archduke frederick of teschen with his wife isabella of croy-dülmen.