Titles and styles: *1869-Present: Her Royal Highness The Princess Royal
- 1883-1884: Her Royal Highness The Princess Royal and Countess of Mardon
- 1884-1891: The Countess of Mardon
- 1891-Present: Her Highness Matilda, The Countess of Mardon
- 1893-Present: Her Highness Matilda "The Reborn", The Countess of Mardon, Dame of the Order of the Petrine Laurel
- 1894-Present: Her Excellency The Princess Matilda Fredericka "The Reborn", Countess of Mardon, Dame of the Order of the Petrine Laurel
- 1898-Present: Count-Consort of Mardon, Paul Dmitrievich Montalt "The Tongue", "The Unspoken", Knight of the Circle of the Petrine Eagle
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