GERMANY - ALLEMAGNE Baden-Durlach, Charles Frederick (1746-1811). Commemorative duchy, birth of the twin princesses 1776 H, Durlach. Av. (at 6 h) CATH. AMAL. & FRID. WILH. PR. M. BAD. & H. SOR. N. 13. IVL. 1776. Facing busts of the two princesses; below a knot and (different). Rv. Inscriptions in nine lines in the field, between two stars: MATRI / GEMELLARVM / DVLCISS. / AMAL. FRID. PR. HER / M. BADENS. & H. N. PR / HASS / D. D. / PRAEF. & CIVIT. / DVRLAC. KM.128 - Fr.146; Gold - 3.49 g - 21 mm - 12 h Top Pop: the only graded example! PCGS AU55 (55936821). By Johann Jakob Hauter (H). Minimal circulation marks in the fields. Light golden patina. Superb. Charles I Frederick (1728-1811) held the successive titles of Margrave of Baden-Durlach from 1738 to 1771, then Margrave of Baden from 1771 to 1803, Elector of Baden from 1803 to 1806 and finally Grand Duke of Baden from 1806 to 1811, raised to this dignity by Napoleon I. His eldest son Charles-Louis de Bade (1755-1801) fathered eight children, including two twins born in 1776: Catherine-Amélie Christiane Louise (13 July 1776 - 26 October 1823) and Frédérica Caroline Wilhelmina de Bade (1776 - 1841), who married Maximilien I of Bavaria (1756 - 1825) in 1797 and was the grandmother of Emperor Franz Joseph I of Austria. This ducat was struck to commemorate the birth of the twin princesses in 1776.