Whilst researching on the correspondence of the last Tsarina Alexandra Feodorovna (1872-1918) of Russia and Princess Marie Bariatinsky, one of the Tsarina’s first maids-of-honour (freilina) in her early years in Russia and a later friend, I discovered a series of unpublished letter cards in a collection in Vienna, from the Tsarina to Princess Marie. The five-letter cards are autographed with…