Ducal Highness, like their elder half-siblings. Their succession rights were reinforced when Baden was granted a constitution in 1818, and recognised by Bavaria and the Great Powers in the Treaty of Frankfurt, 1819. Leopold's descendants ruled the Grand Duchy of Baden until 1918. The current pretenders to the throne of Baden are descendants of Leopold. Leopold, the eldest son from the second marriage, succeeded as Grand Duke in 1830. Ancestry References Further reading Helen P. Liebel, "Enlightened bureaucracy versus enlightened despotism in Baden, 1750-1792." Transactions of the American Philosophical Society 55.5 (1965): 1–132. 1728 births 1811 deaths Nobility from Karlsruhe Protestant monarchs Grand Dukes of Baden House of Zähringen Margraves of Baden-Durlach Margraves of Baden-Baden Prince-electors of the Holy Roman Empire Fellows of the Royal Society