Background
Antonia Elizabeth Brigid Louise Mansfeld was born in London on 28 April 1955, the daughter of Prince Frederick of Prussia and Lady Brigid Katherine Rachel Guinness, daughter of Rupert Guinness, 2nd Earl of Iveagh.
Antonia Elizabeth Brigid Louise Mansfeld was born in London on 28 April 1955, the daughter of Prince Frederick of Prussia and Lady Brigid Katherine Rachel Guinness, daughter of Rupert Guinness, 2nd Earl of Iveagh.
She was educated at Cobham Hall School and King"s College London (Bachelor, English).
She is the twin sister of Prince Rupert Alexander Frederick. She was awarded the Officer of the Most Excellent Order of the British Empire in the 2008 Birthday Honours for services to social housing as President of the Guinness Trust. Marriage and issue 28 April 1955 – 3 February 1977: Her Royal Highness Princess Antonia of Prussia 3 February 1977 – 2010: Her Royal Highness Princess Antonia, Marchioness of Douro 2010-2031 December 2014: Her Royal Highness Princess Antonia, Marchioness of Douro, Duchess of Ciudad Rodrigo 31 December 2014 - present: Her Royal Highness Princess Antonia, Duchess of Wellington, Duchess of Ciudad Rodrigo.