It was a mere handful of their Kazaks, led by Yermak Timofeevitch, who conquered Siberia, in 1581, under Ivan the Terrible, while engaged in repelling the incursions of the Tatars and wild Siberian tribes on the fortified towns which the Stroganoffs had been authorized to erect on the vast territory at the western foot of the Ural Mountains, conveyed to them by the ancient Tzars. Later on, when Alexei Mikhailovitch, the father of Peter the Great, established a new code, grading punishments and fines by classes, the highest money tax assessed for insult and injury was fifty rubles; but the Stroganoffs were empowered to exact one hundred rubles. Opposite the Stroganoff house, on the upper Moika quay, rises the large, reddish-yellow Club of the Nobility, representing still another fashion in architecture, which was very popular during the last century for palaces and grand mansions,--the Corinthian peristyle upon a solid, lofty basement. It is not an old building, but was probably copied from the palace of the Empress Elizabeth, which stood on this spot. Elizaveta Petrovna, though she used this palace a great deal, had a habit of sleeping in a different place each night, the precise spot being never known beforehand. This practice is attributed, by some Russian historians, to her custom of turning night into day. She went to the theatre, for example, at eleven o'clock, and any courtier who failed to attend her was fined fifty rubles. It was here that the populace assembled to hurrah for Elizaveta Petrovna, on December 6, 1741, when she returned with little Ivan VI. in her arms from the Winter Palace, where she had made captive his father and his mother, the regent Anna Leopoldina. It may have been the recollection of the ease with which she had surprised indolent Anna Leopoldina in her bed-chamber which caused her to be so uncertain in her own movements, in view of the fact that there were persons so ill-advised as to wish the restoration of the slothful German regent and her infant son, disastrous as that would have been to the country.