The house of decembrist and a duke Sergei Petrovich Trubetskoy is included to the memorial complex of the mansion where the Decembrists Museum is situated. In 1839–1845 Trubetskoy and his wife and children stayed in a small settlement in Irkutsk Gubernya. His penal servitude was over. In 1845 the Trubetskoy's family moved to Irkutsk where they stayed in a spacious wooden house in Zhamenskoye Suburb till 1856. His wife Ekaterina Ivanovna Trubetskaya (nee Lalval) and three childen passed away in 1854 and were buried together in the yard of Znamenskiy Abbey. Their house in Zhamenskoye Suburb was not preserved, it burnt down in 1908. According to Irkutsk historians, Trubetskoy bought this piece of land with a small house for one of his daughters. The old construction was taken down, and a new house was built instead of it. It was a unique construction for Irkutsk. It looked like a small palace. It was located in the depth of the yard as it was customary for Russian homestead of those times. Presumably it was built in the period of time from 1847 to 1854. Since 1940s the house was called Trubetskoy house. In 1967 under the decree of Irkutsk Executive Committee a historical and memorial complex was recreated on the territory of Spaso-Preobrazhenskaya Church. This complex was called “Decembrists in Irkutsk”. Volkonskiy and Trubetskoy houses were parts of this complex. The complex had exhibitions of things belonging to Decembrists. They were collected in 1920s, books and documents were among them. The house was restored later with the project of Moscow architect Galina Oranskaya in 1973. The department of Irkutsk Regional Local Study Museum was restructured and a separate Decembrists Museum was formed in 2000. Unfortunately, the 150 year old house was in disrepair, it was dismantled in 2007. Later the house was reproduced in accord to the blueprints. After the long and tedious process of restoration in September, 2011 the newly-restored House of Trubetskoy was opened for the visitors.