Students of Italian politics ranked Mr. Andreotti as one of the most prominent leaders in an often-turbulent era from the fall of Fascist dictator Benito Mussolini to the rise of Silvio Berlusconi.
A stooped, cerebral and often ironic man, Mr. Andreotti stood out in Italy’s government for more than four decades, serving seven times as prime minister between 1972 and 1992. At the height of his career, his power in Rome was said to be second only to that of the pope. He was sometimes called Il Divo — “the divine one.” Critics called him Beelzebub.
Raised in poverty, Mr. Andreotti was essentially plucked from youthful obscurity by Alcide De Gasperi, the founder of the Christian Democratic Party who became prime minister shortly after World War II.
He became De Gasperi’s confidant for years and served in succeeding governments as interior, finance, treasury, defense, commerce and foreign minister. Mr. Andreotti was credited with helping lead Italy from the wreckage of World War II to membership in the modern European and world communities.
Over his years in office, Mr. Andreotti faced daunting crises of inflation, unemployment and, at a time of extreme rancor in Italian politics, political terrorism.
As prime minister, Mr. Andreotti crafted often fragile alliances to keep the Christian Democrats in power. He was known for his efforts to limit the influence in Italian politics of the Communist Party.
At one point, he was said to have accepted Communist support in a move to ensure his party’s continued control of the fractious Italian government. The historic compromise, however, proved highly controversial and was regarded as contributing to dangerous instability.
Mr. Andreotti was prime minister in 1978 when Aldo Moro, a Christian Democrat and former prime minister, was kidnapped by the left-wing Red Brigades. Mr. Andreotti refused to negotiate with the kidnappers, and Moro was ultimately found dead in the trunk of a car in Rome.
In the 1990s, Mr. Andreotti became entangled in a series of high-profile corruption and Mafia investigations. Those investigations brought about the dissolution of the Christian Democratic Party. The inquiries revamped Italian politics but jeopardized Mr. Andreotti’s image.
By that time, Mr. Andreotti had been declared a senator for life. He was stripped of his senatorial immunity so that legal action could be pursued against him, and there were two separate, years-long investigations involving his alleged connections to the Mafia.
After he was put on trial in the 1990s, Mr. Andreotti said he wanted to “live long enough to see the truth triumph.”
In one case, prosecutors charged that Mr. Andreotti had conspired with the Mafia in the 1979 murder of Mino Pecorelli, a hard-driving investigative journalist. Mr. Andreotti was acquitted in 1999.