question: Who is the mother-in-law of Prince Radu Of Romania?
context: [["Margareta of Romania", ["Margareta, Custodian of the Crown of Romania (born 26 March 1949) is the eldest daughter of King Michael I and Queen Anne of Romania.", "She assumed her father's duties in March 2016, upon his retirement, and has claimed the headship of the House of Romania since his death on 5 December 2017.", "She also heads the Princess Margareta of Romania Foundation.", "Until 2011, she also used the style of a princess of Hohenzollern.", "Margareta has four sisters and no brothers or children.", "Her heir-presumptive is her next sister, Princess Elena of Romania.", "According to the defunct royal constitutions of 1923 and 1938, women were barred from wearing the crown, and Margareta and her sisters would not be in the line of succession to the throne.", "On 30 December 2007, King Michael designated Margareta as heir presumptive to the defunct throne by an act that is not recognized by the Romanian Republic and lacks legal validity without approval by Romania's Parliament.", "On the same occasion, Michael also requested that, should the Romanian Parliament consider restoring the monarchy, the Salic law of succession not be reinstated, allowing female succession.", "According to the new statute of the Romanian Royal House as declared by Michael, no illegitimate descendants or collateral lines may claim dynastic privileges, titles or rank and any such are excluded from the Royal House of Romania and from the line of succession to the throne."]], ["Minamoto no Chikako", ["She was the mother of Prince Morinaga."]], ["Vera Mileti\u0107", ["Vera Mileti\u0107 (Serbian Cyrillic: \u0412\u0435\u0440\u0430 \u041c\u0438\u043b\u0435\u0442\u0438\u045b; 8 March 1920 \u2013 7 September 1944) was a Serbian student and soldier.", "She was notable for being the mother of Mira Markovi\u0107, posthumously making her the mother-in-law of Serbian president Slobodan Milo\u0161evi\u0107."]], ["Marian Shields Robinson", ["Marian Lois Robinson( n\u00e9e Shields; born July 29, 1937) is the mother of Michelle Obama, former First Lady of the United States, and Craig Robinson, a basketball executive, and the mother- in- law of former U.S. President Barack Obama."]], ["Prince Radu of Romania", ["Prince Radu of Romania (born Radu Duda on 7 June 1960, known as Prince Radu of Hohenzollern-Veringen from 1999 to 2007) is the husband of Margareta of Romania, head of the House of Romania and a disputed pretender to the former Romanian throne.", "On 1 January 1999, he was given the name, not title, of \"Prince of Hohenzollern-Veringen\" by Friedrich Wilhelm, Prince of Hohenzollern, the Head of the Sigmaringen branch of the Hohenzollern family.", "He has also called himself \"Radu Hohenzollern-Veringen-Duda\".", "Since 2007, when he had his legal name changed from \"Radu Duda\" to \"Radu al Rom\u00e2niei Duda\", Radu no longer uses the name of Hohenzollern.", "The Fundamental Rules of the Romanian Royal Family, proclaimed by former King Michael I on 30 December 2007, gave Radu the title of \"Prince of Romania\", with the style of \"Royal Highness\", which King Michael had given him earlier on 5 January 2005.", "Radu was born in Ia\u0219i, Socialist Republic of Romania, the elder of the two children of Professor Dr. Ren\u00e9 Corneliu Duda and his wife Dr. Gabriela Eugenia Duda \"n\u00e9e\" Constandache.", "His only brother is Professor Gabriel Dan Duda.", "In 1996, he married Princess Margareta, eldest daughter of King Michael I of Romania and Queen Anne.", "As spouse of Princess Margareta, Radu often accompanies his wife, sometimes solo, to support social projects and promote the Romanian economy.", "He is also the patron and a member of numerous Romanian charities and organisations."]], ["Baroness G\u00f6sta von dem Bussche-Haddenhausen", ["Baroness G\u00f6sta von dem Bussche- Haddenhausen( 26 January 1902 \u2013 13 June 1996) was the mother of Prince Claus of the Netherlands, who was the Prince Consort of Queen Beatrix of the Netherlands, thus making her the mother- in- law of the former Dutch Queen.", "She is also the paternal grandmother of King Willem- Alexander of the Netherlands, who is the current Dutch King."]], ["Doria Ragland", ["Doria L. Ragland( born September 2, 1956) is the mother of Meghan, Duchess of Sussex, the mother- in- law of Prince Harry, and the maternal grandmother of Archie Mountbatten- Windsor, who is seventh in line to the British throne.", "She is a former makeup artist, business owner, yoga instructor, and former social worker who worked in the mental health sector from 2015 to 2018."]], ["Priscilla Pointer", ["Priscilla Marie Pointer( born May 18, 1924) is an American stage, film and television character actress.", "She began her career in the theater, including productions on Broadway.", "Later, Pointer moved to Hollywood to act in films and on television.", "She is the mother of Amy Irving, therefore making her the former mother- in- law of filmmakers Steven Spielberg and Bruno Barreto and the mother- in- law of documentary filmmaker Kenneth Bowser, Jr."]], ["Eldon Howard", ["Eldon Howard was a British screenwriter.", "She was the mother- in- law of Edward J. Danziger and wrote a number of the screenplays for films by his company Danziger Productions."]], ["Maria Thins", ["Maria Thins( c. 1593 \u2013 27 December 1680) was the mother- in- law of Johannes Vermeer and a member of the Gouda Thins family."]]]
supporting_facts: [["Prince Radu of Romania", 0], ["Margareta of Romania", 0]]
evidences: [["Prince Radu of Romania", "spouse", "Margareta of Romania"], ["Margareta of Romania", "mother", "Queen Anne of Romania"]]
answer: Queen Anne of Romania