A Swedish royal family, as closely related to a head of state, has been able to be identified as existent from as early as the 10th century A.D., with more precise detail added during the two or three centuries that followed. An exceptional case is that of Saint Bridget (1303–1373) who outside of Sweden became known as the Princess of Nericia,[1] a title which appears to have been a noble, rather than a royal one, since she was not the daughter of a king. Historically confirmed monarchs are listed officially by the Swedish Royal Court.