an imperial princess of Brazil, an archduchess of Austria, a French royal princess, a royal princess of Belgium and a royal princess of Saxony. A scion of this branch, Ferdinand, became ruling Prince and then Tsar of Bulgaria, and his descendants continued to reign there until 1946. The current head of the House of Bulgaria, the former Tsar Simeon Saxe-Coburg-Gotha, who was deposed and exiled after World War II, goes by the name of Simeon Sakskoburggotski and served as Bulgaria's prime minister from 2001 to 2005. The ducal house consisted of all male-line descendants of John Ernest IV, Duke of Saxe-Coburg-Saalfeld legitimately born of an equal marriage, males and females (the latter until their marriage), their wives in equal and authorised marriages, and their widows until remarriage. According to the House law of the Duchy of Saxe-Coburg and Gotha, the full title of the Duke was: There were two official residences, in Gotha and Coburg. Therefore, the whole ducal court, including the court theatre, had to move twice a year: from Gotha to Coburg for the summer and from Coburg to Gotha for the winter. For the Court Theater, two almost identical buildings had to be built in 1840 in Gotha (destroyed in World War II) and Coburg (now the Coburg State Theater) and thereafter maintained at the same time. In addition to the residential castles, Friedenstein Palace in Gotha and Ehrenburg Palace in Coburg, the ducal family also used the Schloss Reinhardsbrunn in Gotha, as well as the Schloss Rosenau and Callenberg Castle in Coburg, and a hunting lodge, Greinburg Castle, in Grein, Austria. Branches Ducal branch Dukes, 1826–1918 Ernest I 1826–1844 Ernest II 1844–1893 Alfred 1893–1900 Charles Edward 1900–1918 Heads of the house since 1918 Charles Edward 1918–1954 Friedrich Josias 1954–1998 Andreas 1998–present Although the ducal branch is eponymous with the dynasty, its head is not the senior member of the family genealogically or agnatically. In 1893, the reigning duke Ernest II died childless, whereupon the throne would have devolved, by male primogeniture, upon the descendants of his brother Prince Albert. However, as heirs to the British throne, Albert's descendants consented and the law of the duchy ratified that the ducal throne would not be inherited by the British monarch or heir apparent. Therefore, the German duchy became a secundogeniture, hereditary among the younger princes of the British royal family who belonged to the House of Wettin, and