Line of succession to the French throne (Bonapartist) sons, and it seemed unlikely that he would have any due to the age of his wife, Joséphine de Beauharnais. His eventual response was to have his marriage to Josephine annulled and to undertake a second marriage with Roman Catholic rites to Archduchess Marie Louise, daughter of Emperor Francis I of Austria. Their only child was Napoleon, King of Rome, known in exile as "Napoleon II" and as the Duke of Reichstadt. He died unmarried, thereby extinguishing the legitimate descent of Napoleon I. Meanwhile, Napoleon I's older brother, Joseph Bonaparte, recognized upon establishment of the First Empire as first in
Elena-Evgenia, wife of Ivan Asen I to a convent under the monastic name Evgenia (). Her memory is honored in the Synodic of Bulgarian Church: Elena-Evgenia, wife of Ivan Asen I Elena () was the second wife of tsar Ivan Asen I of Bulgaria. She was the mother of tsar Ivan Asen II of Bulgaria. Her antecedents are unknown. She is sometimes alleged to be a daughter of Stefan Nemanja of Serbia, but this relationship is questionable and would have caused various canonical impediments to marriages between their descendants. Elena married Ivan Asen I in 1183 at the age of thirteen. By her marriage to Ivan