Heinrich XI, Prince Reuss of Greiz
Heinrich XI was born at Greiz, Reuss, youngest child of Count Heinrich II Reuss-Obergreiz (1696–1722), (son of Heinrich VI, Count Reuss-Greiz and Baroness Henriette Amalie von Friesen) and his wife, Countess Sophie Charlotte von Bothmer (1697–1748), (daughter of Count Hans Kaspar von Bothmer and Gisela Erdmuth von Hoym).Heinrich succeeded his brother Henry IX as Count of Reuss-Obergreiz 17 March 1723.After the death of Count Henry III Reuss-Untergreiz, in 1768, including the city of Untergreiz passed to the domains of the Heinrich XI and he was able to gather these possessions and guaranteed the line of succession.Heinrich XI married on 4 April 1743 in Köstritz to Countess Conradine Reuss-Köstritz (1719–1770), youngest daughter of Heinrich XXIV, Count Reuss of Köstritz, and his wife, Baroness Marie Eleonore Emma von Promnitz-Dittersbach.They had eleven children: Heinrich married secondly on 25 October 1770 in Frankfurt am Main to Countess Alexandrine of Leiningen-Dagsburg-Heidesheim (1732–1809), second daughter of Christian Karl Reinhard, Count of Leiningen-Dagsburg-Heidesheim, and his wife, Countess Catharine Polyxene of Solms-Rödelheim und Assenheim; they had no issue.