Question: In what political party is Lady Dorothy Macmillan's husband?

Context paragraphs:
Arthur F. H. Mills: Arthur Frederick Hobart Mills is one of a family of authors.  His grandfather, Arthur Mills, was a Tory and an expert of colonial economies and governance.  The senior Mills' "India in 1858" describes the political and economic conditions in India after the Indian Rebellion of 1857.  Arthur F. H. Mills is the brother of children's book author George Mills ("Meredith and Co.", "King Willow") and author, explorer, and adventurer Lady Dorothy Mills ("The Laughter of Fools", "The Road to Timbuktu"), to whom he was married from 1916 through their divorce in 1933.

Luis Favre: Luis Favre Argentine (born in Buenos Aires, Argentina 1949) is the pseudonym of Argentine-born Brazilian journalist and political activist Felipe Belisario Wermus.  Favre joined the political party Politica Obrera as a young man.  Later, he moved to France and became a member of the Internationalist Communist Organisation (ICO), working especially in its international department.  He moved to Brazil and became a critic of Pierre Lambert during the Fourth International tendency within ICO.  He would later leave the party to become a member of the Partido dos Trabalhadores (PT).  He is known to a broader public in Brazil as the second husband of Marta Smith de Vasconcelos Suplicy, former congresswoman and mayor of São Paulo through PT.  Since 1986 he has been an aide to the National Secretariat of International Relations of PT, attending various international events on its behalf.  He is linked to a group of former Trotskyists within PT known colloquially as the "Libelu" (named after their tendency, "Liberdade e Luta" or "Freedom and Fight"), which supports Luiz Inácio Lula da Silva's wing.

Lady Caroline Faber: Lady Ann Caroline Faber (29 August 1923 – 14 September 2016) was the daughter of Harold Macmillan (created Earl of Stockton in 1984) and his wife Lady Dorothy Macmillan.  She was the second of their four children, and their last surviving child.

Margaret Fisher: Margaret Fisher (née Irvine; born  1874 - 15 June 1958) was married to Andrew Fisher on 31 December 1901.  They lived in Gympie, Queensland in her husband's electorate of Wide Bay.  However, when her husband was elected Leader of the Australian Labor Party in 1907 they were moved to Melbourne, at that time serving as the temporary seat of government of Australia.  They bought Oakleigh Hall at Hughenden Road, [East St Kilda].  The house was a constant source of financial worry to Andrew Fisher.  Unlike her predecessors as wife of the Prime Minister of Australia, she took part in political demonstrations.  When she and her husband travelled to London for the coronation of George V she joined a large procession marking the progress of a bill intended to give British women the right to vote.  At the Imperial Conference, also taking place at the same time as the coronation, Andrew Fisher was the sole Prime Minister from a labour party, making the Fishers somewhat of a celebrity with British Labour Party members of parliament led by Andrew Fisher's friend Keir Hardie.  This also caused some embarrassment for Margaret.  She attended a Labour Party dinner on the same night she and Rosina Batchelor were intended to be presented at court.  Because of an error the two ladies were not told to leave the dinner in time to change into their court dresses and drive to Buckingham Palace.  She was later dubbed by reporters the 'Yes, No Lady' after she failed to explain why she was presented some weeks later at Holyrood House.

Lady Dorothy Macmillan: Lady Dorothy Evelyn Macmillan, {'1': ", '2': ", '3': ", '4': "} ("née" Cavendish; 28 July 1900 – 21 May 1966) was a daughter of Victor Cavendish, 9th Duke of Devonshire and Evelyn Cavendish, Duchess of Devonshire and the wife of the British Prime Minister Harold Macmillan.

Equality and Development Party: The Equality and Development Party is a political party in Egypt.  The party was started by Egyptian actress Tayseer Fahmy and her husband Dr. Ahmed Abou-bakr.  Fahmy has stated that the party will work to achieve the goals of the revolution.

Rumiana Jeleva: Rumiana Ruseva Jeleva Bulgarian: Румяна Русева Желева (born on April 18, 1969 in the town of Nova Zagora) was Bulgaria's minister of foreign affairs (July 2009 – January 2010), the third woman to hold this office after Irina Bokova and Nadezhda Mihailova.  Jeleva was a key figure in the "GERB" political party which won the 2009 parliamentary elections.  From 2007–2009 she served as Member of the European Parliament (MEP) and headed the Bulgarian delegation in the EPP Group.  She was nominated by Prime Minister Boyko Borisov as Commissioner in the "Barroso II Commission" and was affiliated with the European People's Party (EPP).  However, an article in the German newspaper "Die Welt" accused her husband of links with the Russian mafia.

Harold Macmillan: Maurice Harold Macmillan, 1st Earl of Stockton, {'1': ", '2': ", '3': ", '4': "} (10 February 1894 – 29 December 1986) was a British statesman of the Conservative Party who served as Prime Minister of the United Kingdom from 1957 to 1963.  Nicknamed "Supermac", he was known for his pragmatism, wit and unflappability.

Dorothy Dixer: In Australian politics, a Dorothy Dixer is a rehearsed or planted question asked of a government Minister by a backbencher of their own political party during Parliamentary Question Time.

Dorothy Hyuha: Dorothy Samali Hyuha is a Ugandan diplomat, educator, and politician.  She is the High Commissioner (Ambassador) of Uganda to Tanzania.  She previously served as Minister Without Portfolio in the Cabinet of Uganda.  From 2006 until 2011, Hyuha served as the Butaleja District Woman MP in the Ugandan Parliament.  During the same time-frame, she concurrently served as the deputy secretary general of the National Resistance Movement (NRM) political party.

Supporting paragraphs: Lady Dorothy Macmillan Harold Macmillan
Answer: Conservative Party