This list presents the consorts associated with the rulers of Finland across its various historical periods. It includes the spouses of the Dukes of Finland during the Middle Ages and the early modern era (up to 1563), when the title was usually held by members of the Swedish royal family; the spouses of the Grand Dukes of Finland during the Swedish period (from the 1580s to 1809); and the consorts of the Russian emperors, who held the title of Grand Duke of Finland during the period of the Grand Duchy of Finland (1809âÂÂ1917). The list also includes the spouse of Friedrich Karl of Hesse, the German prince elected King of Finland in 1918, who never assumed the throne.