Kristina, the Girl King & Elisabeth, the Princess bride (Royal Diaries)

Elisabeth: Author Barry Denenberg brings us into the whirlwind that is the life of Princess Elisabeth of Austria. A free and impetuous spirit, Elisabeth was chosen at the tender age of fifteen (over her older sister) to be the wife of Franz Joseph, Emperor of Austria, Kristina: Upon discovering that their newborn infant was, in fact, female and not male as first thought, Queen Marie Eleonore wailed inconsolably and King Gustavus Adolphus declared, nevertheless, that the child be raised as a prince. At age six, upon the death of her father, the child Kristina, was proclaimed King of Sweden, with regents assigned to council until she assumes the throne at age eighteen. And indeed, her life followed her father's plan. We meet Kristina when she's almost twelve years old and eschewing feminine practices but reveling in the study of military tactics,