House of Saxe-Coburg and Gotha
The House of Saxe-Coburg and Gotha-Koháry is the Catholic cadet branch of the House of Saxe-Coburg and Gotha, founded after the marriage of Prince Ferdinand of Saxe-Coburg and Gotha and Princess Maria Antonia Koháry de Csábrág. Among its descendants were the last four kings of Portugal (Pedro V, Luís I, Carlos I, Manuel II) and the last three Tsars of Bulgaria (Ferdinand I, Boris III, Simeon II). After the change of the “House laws” by King Simeon, the present head of the house is his sister Princess Marie-Louise