After 1754, both of the large princely suites dating from the 17th century were reworked in accordance with the rather more modest ideas of the last Princess Eggenberg, Maria Eleonora and her husband, Johann Leopold Count Herberstein. Whilst Herberstein, who was also a Styrian provincial governor, lived at his main residence within the family’s City Palais at Sackstrasse 16, Graz, the now out-dated princely Residence remained the domain of his wife. At the time of the Residence’s refurbishment, the princess, facetiously known as the “Old Fairy”, was already advanced in years. The building would now have to be reappointed in line with her requirements.
Aside from the couple’s private rooms and bedchambers to the rear of the Residence, two public suites were again created: the State Apartments to the south side and the Semi-State Apartments to the north. It was in the latter apartments that soirées were held, with guests enjoying playing at the numerous games tables set up in the rooms.