Her mother issued a decree allowing her to adopt her husband's princely title as customary, providing that it be preceded by the title she held as a member of the House of Mecklenburg.Decree of granting the title "Princess of Lippe-Biesterfeld" to HRH Prince Juliana – Website with Legislation concerning the Royal House of the Netherlands (Dutch) The decree became effective upon her marriage, and changed her full title and style to: Her Royal Highness Princess Juliana of the Netherlands, Princess of Orange-Nassau, Duchess of Mecklenburg, Princess of Lippe-Biesterfeld, etc.
Her mother issued a decree allowing her to adopt her husband's princely title as customary, providing that it be preceded by the title she held as a member of the House of MecklenburgDecree of granting the title "Princess of Lippe-Biesterfeld" to HRH Prince Juliana – Website with Legislation concerning the Royal House of the Netherlands (Dutch) The decree became effective upon her marriage, and changed her full title and style to: Her Royal Highness Princess Juliana of the Netherlands, Princess of Orange-Nassau, Duchess of Mecklenburg, Princess of Lippe-Biesterfeld, etc.