english: Their political struggles  were only intensified by personal turmoil: Alexei, the heir to the throne, had a life-threatening blood disease  called hemophilia.
non_english: Politička previranja su dodatno bila naglašena njihovim porodičnim nespokojem: Aleksej, prestolonaslednik, imao je po život opasnu bolest krvi nazvanu hemofilija.