Agustín de Iturbide y Green was the adopted son of which Belgian princess?
Agustín de Iturbide y Green Don Agustín de Iturbide y Green, Prince of Iturbide (2 April 1863, in Mexico City, Mexico – 3 March 1925, in Washington, D.C.) was the grandson of Agustín de Iturbide, the first emperor of independent Mexico, and his consort Empress Ana María. He became the adopted son, along with his cousin Salvador de Itúrbide y de Marzán, of Mexico's only other royal heads of state—Emperor Maximilian I of Mexico and Empress Carlota of Mexico. After the death of Emperor Maximilian in 1867, he became the Head of the Imperial House of Mexico, but he had no children. His claims passed to Maria Josepha Sophia de Iturbide, the daughter of his cousin, Salvador.
Princess Sophie of Saxe-Coburg-Saalfeld Princess Sophie of Saxe-Coburg-Saalfeld (Sophie Fredericka Caroline Louise; 19 August 1778 – 9 July 1835) was a princess of Saxe-Coburg-Saalfeld, and the sister of Princess Victoria of Saxe-Coburg-Saalfeld and King Leopold I of Belgium, and aunt of Queen Victoria. By marriage, she was a Countess of Mensdorff-Pouilly.