Tsandzile Dlamini
Tsandzile Dlamini is a princess of Swaziland who currently serves as Minister of Home Affairs.
Helena, Marchioness of Northampton
Elin Ulfsdotter Snakenborg, Marchioness of Northampton, also known as Helena, and Helena the Red for her red hair,( 1548/ 1549 – 10 April 1635) was a Swedish- born noblewoman, Maid of Honour of Queen Elizabeth I of England, and Marchioness of Northampton by her marriage to William Parr, 1st Marquess of Northampton.
Charles Wellesley, 9th Duke of Wellington
Arthur Charles Valerian Wellesley, 9th Duke of Wellington (born 19 August 1945), styled Earl of Mornington between 1945 and 1972 and Marquess of Douro between 1972 and 2014, is a British aristocrat and politician.
He has served as Conservative Party Member of the European Parliament for Surrey (1979–1984) and Surrey West (1984–1989) and has sat as a hereditary peer in the House of Lords since 2015.
Princess Esra
Princess Qhabl Begum Sahiba Esra Birgen (born 1936) is a princess belonging to the Asaf Jah Dynasty of Hyderabad state by marriage.
She was married to Prince Mukarram Jah.
Princess Esra is a princess by marriage not by birth.
Princess Antonia of Luxembourg
Princess Antonia of Luxembourg( Antoinette Roberte Sophie Wilhelmine; 7 October 1899 – 31 July 1954) was a member of the Luxembourgish House of Nassau- Weilburg and the last Crown Princess of Bavaria as the wife of Crown Prince Rupprecht.
Princess Sumaya bint Hassan
Sumaya bint Hassan( born 14 May 1971) is a princess of Jordan.
Princess Irmingard of Bavaria
Princess Irmingard of Bavaria( 29 May 1923 – 23 October 2010) was the daughter of Rupprecht, Crown Prince of Bavaria and his second wife, Princess Antonia of Luxembourg.
She was a half- sister of Albrecht, Duke of Bavaria.
Princess Antonia, Duchess of Wellington
Princess Antonia of Prussia, Duchess of Wellington, (born 28 April 1955) is a great-granddaughter of Wilhelm II, German Emperor and the wife of Charles Wellesley, 9th Duke of Wellington.
Susanna Leveson-Gower, Marchioness of Stafford
Susanna Leveson- Gower, Marchioness of Stafford( née Lady Susanna Stewart)( 1742 – 1805), styled Lady Susanna Stewart from 1742 to 1768, Countess Gower until 1786, Marchioness of Stafford until 1803 and Dowager Marchioness of Stafford until her death in 1805, was a British noblewoman, who in 1768 became the wife of Granville Leveson- Gower, 1st Marquess of Stafford and a member of the Leveson- Gower family.
Margaret, Marchioness of Namur
Margaret, Marchioness of Namur( c. 1194 – 17 July 1270) was ruling Marchioness of Namur in 1229- 1237.
She was the daughter of Peter II of Courtenay and Yolanda of Flanders.

Question: What nationality is Princess Antonia, Duchess Of Wellington's husband?
Answer: British