Claim: Senate Square in Saint Petersburg was formerly known as Decembrists Square for ten years.
Evidence: Senate Square (Russian: Сенатская площадь), formerly known as Decembrists' Square (Площадь Декабристов) from the 1920s to 2008, and (formally) as Peter's Square (Петрова площадь), from 1782 to 1925, is a city square in Saint Petersburg, Russia.