Grand Duchess Tatiana's birth name is Tatiana Nicholaevna Romanova.
Grand Duchess Anastasia's birth name is Anastasia Nicholaievna Romanova.
Grand Duchess Marie's birth name is Maria Nikolaevna Romanova.
Grand Duchess Olga's birth name is Olga Nicholaevna Romanova.
Tatiana is not a German name. It is of Latin and Russian origins (i.e. Grand Duchess Tatiana Nikolaevna Romanova of Russia) and means "father."
Tatiana Bolanos's birth name is Tatiana Beatriz Bolanos.
Tatiana Fontes's birth name is Tatiana Fontes.
Tatiana Lysenko's birth name is Tatiana Felixovna Lysenko.
Tatiana Sisquella's birth name is Tatiana Sisquella i Caabate.
Tatiana Jitkoff's birth name is Tatiana Adrian Jitkoff.
Tatiana Edwards's birth name is Tatiana Kathryn Edwards.
Tatiana Buzyan's birth name is Tatiana Valentinovna Buzyan.
Tatiana Yarosh's birth name is Tatiana Yuryevna Yarosh.