Who is Mary, Crown Princess of Denmark's mother-in-law?
Mary, Crown Princess of Denmark Mary, Crown Princess of Denmark, Countess of Monpezat, {'1': ", '2': ", '3': 'R.E.', '4': "} (Mary Elizabeth; "née" Donaldson; born 5 February 1972) is the wife of Frederik, Crown Prince of Denmark. Frederik is the heir apparent to the throne, which means that should Frederik succeed, she will automatically become Queen of Denmark.
Princess Ingeborg of Denmark Princess Ingeborg of Denmark ("Ingeborg Charlotte Caroline Frederikke Louise"; 2 August 1878 – 12 March 1958), was a Princess of Sweden by marriage to Prince Carl, Duke of Västergötland. She was the daughter of Frederick VIII of Denmark, and the maternal grandmother of Harald V of Norway, Baudouin and Albert II of Belgium, and the female line great grandmother of Henri of Luxembourg.