"At the Russian frontier Wellington was met by an officer of the Field Jaegers of the Imperial Guard who escorted him to St Petersburg, and then to his accommodation. It was the 2nd of March 1826 and the Russian state put him up on the Great Quay (What is now Kutusov embankment) were he would use the house of Count Dmitry Gourieff (Gouriev) who had been the late Tsar’s Minister of Finance and had died in 1825, leaving it free, this suited the Duke because he did not like embassy’s."

https://adventuresinhistoryland.com/2014/03/29/the-duke-and-the-tsar-part-2/