Lopacinskiai Palace or Lopacinskiai-Olizarai Palace () is a former residential palace in the Vilnius Old Town on Bernardinà ³ street. Currently, it is used as the hotel "à  ekspyras".
Extant reports indicate the existence of Gothic-style structures on the site of the present palace as early as the 16th century. In the first half of the 17th century, a small square brick house was constructed on the southern part of the present palace, near Bernardinà ³ Street. Throughout the centuries, the palace has undergone numerous reconstructions and extensions.
In 1663-1664, the Treasurer of the Grand Duchy of Lithuania, Gabrielius Kimbaras, engaged in legal proceedings against SakaviÃÂienÃÂ, the Voivode of Smolensk, to secure possession of the palace. In 1671, the legal proceedings were continued by the parties' descendants: Kimbaras's daughters, Judita Kublicka, Elena OzemblovskienÃÂ, Marijona ChreptaviÃÂienÃÂ, and SakaviÃÂienÃÂ's son, Stanislovas Laudanskis, the Podstoli of Wenden. However, the outcome of the court case is unknown, and at the beginning of the 18th century, the palace was owned by the ZenaviÃÂius family.
In 1748, the palace was damaged by fire, and it was not until 1762 that it was purchased by Elder of Mstsislaw Voivodeship Mikoà Âaj Tadeusz à Âopacià Âski (Mikalojus Tadas Lopacinskis), who initiated a reconstruction project of the architect Johann Christoph Glaubitz. The building was reconstructed into a complex two-storey palace with a trapezoidal plan and a semi-enclosed courtyard.
In 1801, the palace was sold by J. Lopacinskis, to the Kossakowski family. At that time, the palace had 27 rooms. In 1808, the buildings underwent reconstruction at the behest of Jonas Nepomukas Kosakovskis, Bishop of Vilnius, resulting in the palace being slightly curved according to the contour of the street and covered with a high, stepped roof.
Between 1819 and 1828, Count Olizaras family owned the palace, and it is believed that during this period it served as a meeting place for Masonic lodge, thus becoming one of the most significant buildings in the history of Lithuanian Freemasonry. The Zavadskis family acquired the palace from Count Olizaras. The Zavadskis frequently rented rooms in the palace, and in 1857, books and printing equipment were stored in a separate garden building, suggesting the presence of a printing house.
Between 1967 and 1975, the main building underwent partial reconstruction and adaptation for use as a publishing house, as outlined in the project by architect Aldona SvabauskienÃÂ. This publishing house operated within the building until 1985.
Currently, this building is used as the hotel "Ã Â ekspyras".