 Following the 1826 re-distribution in the House of Wettin of the Ernestine duchies, his dynastic suffix became "of Saxe-Coburg and Gotha".His mother was Princess Maria Antonia Koháry, the daughter and heiress of Ferenc József, Prince Koháry de Csábrág et Szitnya.When Antonia's father died in 1826, she inherited his estates in Slovakia and Hungary.