Countess_Palatine_Eleonora_Catherine_of_Zweibrücken

Eleonora Catherine of the Palatinate-Zweibrücken (17 May 1626 – 3 March 1692), was a cousin and foster sister of Queen Christina of Sweden and sister of King Charles X of Sweden. After her brother's accession to the throne (1654), she and her siblings were all considered royal princesses and princes of Sweden. As the wife of Frederick, Landgrave of Hesse-Eschwege (1617–1655), she was by marriage Landgravine of Hesse-Eschwege, and after her husband's death acted as regent and administrator of his lands (1655–1692).