Tyzenhaus Palace (Lithuanian Tyzenhauzų rūmai) is an 18th-century mansion located in the city of Vilnius, Lithuania. History The historical sources of 1579 mention an International Gothic building in the same place. However, it later fell into disuse and then into ruin. Around 1765 the parcel was bought by Antoni Tyzenhaus (Antanas Tyzenhauzas in Lithuanian translation), a treasurer of Lithuania, starost of Grodno and a close friend of the Polish king Stanisław August Poniatowski. A notable personality of the epoch, Tyzenhauz was a manager of royal grounds in the Grand Duchy of Lithuania and was responsible for a major industrialisation effort in the area of Grodno. In the early 1770s he ordered the construction of a new, classical style palace. The house was most probably constructed by a Venetian architect Giuseppe de Sacco. After Tyzenhaus went bankrupt and was dismissed in 1777, the palace fell into disuse. After Tyzenhaus' death in 1785, it was sold to General Fitinhof's widow. She bought the palace in 1789 and she ordered its reconstruction and refurbishment the following year. The work was most probably carried out by German-born architect and professor at the Jesuit Academy of Vilna Martin Knakfuss. The new simplistic façades were added and a so-called Silver hall was built. After the reconstruction, the palace had 30 halls and 16 smaller rooms; and was one of the biggest aristocratic residences in Lithuania. In 1807, yet another refurbishment was carried out by Mikołaj Szulc, after which the interior was modernised and a new staircase was added to the palace. Despite that, in the 19th century the palace yet again fell into disuse and was parcelated between various shops and stores. Many doors and windows were added on the ground floor and the luxurious part of the palace deteriorated. In the early 20th century the palace was bought by E. Bortkiewicz, who ordered the reconstruction of the second floor. Later, after the city of Vilnius/Wilno became a part of Poland in 1922, the 2nd and 3rd floors were yet again reconstructed to house a Hotel Sokołowskiego, named after its owner. During the German bombings of Wilno during the Polish Defensive War the building was heavily damaged. It was further damaged during Operation Ostra Brama in 1944, and only the cellars, ground floor and outer walls were preserved. Unlike many buildings on Vokiečių street, the palace was rebuilt in 1945. In 1957 the total reconstruction of