According to Royal News 24:
Today is the 60th birthday of Her Imperial Highness the Grand Duchess Maria Vladimirovna of Russia.
Born in 1953, she is the only child of Grand Duke Vladimir Kirillovich of Russia and Princess Leonida Bagration-Mukhrani. She was born in Madrid where her family lived in exile. Her father issued a decree recognising Maria as heiress presumptive and that upon his death, she should become Curatrix of the Imperial Throne. In 1976, she married Prince Franz Wilhelm of Prussia and they had one son together, Grand Duke George Mikhailovich (b. 1981).
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