Giovanni Leone was an Italian politician, jurist and university professor. A founding member of Christian Democracy (DC), Leone served as the president of Italy from December 1971 until June 1978. He also briefly served as Prime Minister of Italy from June to December 1963 and again from June to December 1968. He was also the president of the Chamber of Deputies from May 1955 until June 1963.

Christian Democracy was a Christian democratic political party in Italy. The DC was founded on 15 December 1943 in the Italian Social Republic as the nominal successor of the Italian People's Party, which had the same symbol, a crusader shield. As a Catholic-inspired, centrist, catch-all party comprising both centre-right and centre-left political factions, the DC played a dominant role in the politics of Italy for fifty years, and had been part of the government from soon after its inception until its final demise on 16 January 1994 amid the Tangentopoli scandals. Christian Democrats led the Italian government continuously from 1946 until 1981. The party was nicknamed the "White Whale" due to its huge organisation and official colour. During its time in government, the Italian Communist Party was the largest opposition party.