Nicholas I of Russia

Nicholas I ( – ) was Emperor of Russia, King of Congress Poland and Grand Duke of Finland. He was the third son of Paul I and younger brother of his predecessor, Alexander I. Nicholas's reign began with the failed Decembrist revolt. He is mainly remembered in history as a reactionary whose controversial reign was marked by geographical expansion, centralisation of administrative policies and repression of dissent. Nicholas had a happy marriage that produced a large family; all of their seven children survived childhood.