Heads of government who were later imprisoned

Karl Dönitz (sometimes spelled Doenitz; German: [ˈdøːnɪts] ; 16 September 1891 – 24 December 1980) was a German admiral who briefly succeeded Adolf Hitler as head of state in May 1945, holding the position until the dissolution of the Flensburg Government following Germany's unconditional surrender to the Allies days later. As Supreme Commander of the Navy beginning in 1943, he played a major role in the naval history of World War II.
He began his career in the Imperial German Navy before World War I. In 1918, he was commanding UB-68, and was taken prisoner of war by British forces. As commander of UB-68, he attacked a convoy in the Mediterranean while on patrol near Malta. Sinking one ship before the rest of the convoy outran his U-boat, Dönitz began to formulate the concept of U-boats operating in attack groups Rudeltaktik (German for "pack tactic", commonly called a "wolfpack") for greater efficiency, rather than operating independently.By the start of the Second World War, Dönitz was supreme commander of the Kriegsmarine's U-boat arm (Befehlshaber der Unterseeboote (BdU)). In January 1943, Dönitz achieved the rank of Großadmiral (grand admiral) and replaced Grand Admiral Erich Raeder as Commander-in-Chief of the Navy. Dönitz was the main enemy of Allied naval forces in the Battle of the Atlantic. From 1939 to 1943 the U-boats fought effectively but lost the initiative from May 1943. Dönitz ordered his submarines into battle until 1945 to relieve the pressure on other branches of the Wehrmacht (armed forces). 648 U-boats were lost—429 with no survivors. Furthermore, of these, 215 were lost on their first patrol. Around 30,000 of the 40,000 men who served in U-boats perished.On 30 April 1945, after the suicide of Adolf Hitler and in accordance with his last will and testament, Dönitz was named Hitler's successor as head of state in what became known as the Goebbels cabinet after his second-in-command, Joseph Goebbels, until Goebbels' suicide led to Dönitz's cabinet being reformed into the Flensburg Government instead. On 7 May 1945, he ordered Alfred Jodl, Chief of Operations Staff of the Oberkommando der Wehrmacht (OKW), to sign the German instruments of surrender in Reims, France, formally ending the War in Europe. Dönitz remained as head of state with the titles of President of Germany and Supreme Commander of the Armed Forces until his cabinet was dissolved by the Allied powers on 23 May de facto and on 5 June de jure.
By his own admission, Dönitz was a dedicated Nazi and supporter of Hitler. Following the war, he was indicted as a major war criminal at the Nuremberg trials on three counts: conspiracy to commit crimes against peace, war crimes, and crimes against humanity; planning, initiating, and waging wars of aggression; and crimes against the laws of war. He was found not guilty of committing crimes against humanity, but guilty of committing crimes against peace and war crimes against the laws of war. He was sentenced to ten years' imprisonment; after his release, he lived in a village near Hamburg until his death in 1980.

Jacques René Chirac (French: [ʒak ʁəne ʃiʁak] ; UK: , US: ,; 29 November 1932 – 26 September 2019) was a French politician who served as President of France from 1995 to 2007. He was previously Prime Minister of France from 1974 to 1976 and 1986 to 1988, as well as Mayor of Paris from 1977 to 1995.
After attending the École nationale d'administration, Chirac began his career as a high-level civil servant, entering politics shortly thereafter. Chirac occupied various senior positions, including minister of agriculture and minister of the interior. In 1981 and 1988, he unsuccessfully ran for president as the standard-bearer for the conservative Gaullist party Rally for the Republic (RPR). Chirac's internal policies initially included lower tax rates, the removal of price controls, strong punishment for crime and terrorism, and business privatisation. After pursuing these policies in his second term as prime minister, he changed his views. He argued for different economic policies and was elected president in 1995, with 52.6% of the vote in the second round, beating Socialist Lionel Jospin, after campaigning on a platform of healing the "social rift" (fracture sociale). Chirac's economic policies, based on dirigisme, allowing for state-directed investment, stood in opposition to the laissez-faire policies of the United Kingdom under the ministries of Margaret Thatcher and John Major, which Chirac described as "Anglo-Saxon ultraliberalism".He was also known for his stand against the American-led invasion of Iraq, his recognition of the collaborationist French government's role in deporting Jews, and his reduction of the presidential term from seven years to five through a referendum in 2000. At the 2002 presidential election, he won 82.2% of the vote in the second round against the far-right candidate, Jean-Marie Le Pen, and was the last president to be re-elected until 2022.
In 2011, the Paris court declared Chirac guilty of diverting public funds and abusing public confidence, giving him a two-year suspended prison sentence.

Édouard Daladier (French: [edwaʁ daladje]; 18 June 1884 – 10 October 1970) was a French Radical-Socialist (centre-left) politician, and the Prime Minister of France who signed the Munich Agreement before the outbreak of World War II.
Daladier was born in Carpentras and began his political career before World War I. During the war, he fought on the Western Front and was decorated for his service. After the war, he became a leading figure in the Radical Party and Prime Minister in 1933 and 1934. Daladier was Minister of Defence from 1936 to 1940 and Prime Minister again in 1938. As head of government, he expanded the French welfare state in 1939.
Along with Neville Chamberlain, Benito Mussolini and Adolf Hitler, Daladier signed the Munich Agreement in 1938, which gave Nazi Germany control over the Sudetenland. After Hitler's invasion of Poland in 1939, Britain and France declared war on Germany. During the Phoney War, France's failure to aid Finland against the Soviet Union's invasion during the Winter War led to Daladier's resignation on 21 March 1940 and his replacement by Paul Reynaud. Daladier remained Minister of Defence until 19 May, when Reynaud took over the portfolio personally after the French defeat at Sedan.
After the Fall of France, Daladier was tried for treason by the Vichy government during the Riom Trial and imprisoned first in Fort du Portalet, then in Buchenwald concentration camp, and finally in Itter Castle. After the Battle of Castle Itter, Daladier resumed his political career as a member of the French Chamber of Deputies from 1946 to 1958. He died in Paris in 1970.

Hugo Rafael Chávez Frías (Spanish pronunciation: [ˈuɣo rafaˈel ˈtʃaβes ˈfɾi.as] ; 28 July 1954 – 5 March 2013) was a Venezuelan politician and military officer who served as president of Venezuela from 1999 until his death in 2013, except for a brief period of forty-seven hours in 2002. Chávez was also leader of the Fifth Republic Movement political party from its foundation in 1997 until 2007, when it merged with several other parties to form the United Socialist Party of Venezuela (PSUV), which he led until 2012.
Born into a middle-class family in Sabaneta, Barinas, Chávez became a career military officer and, after becoming dissatisfied with the Venezuelan political system based on the Puntofijo Pact, he founded the clandestine Revolutionary Bolivarian Movement-200 (MBR-200) in the early 1980s. Chávez led the MBR-200 in its unsuccessful coup d'état against the Democratic Action government of President Carlos Andrés Pérez in 1992, for which he was imprisoned. Pardoned from prison two years later, he founded the Fifth Republic Movement political party, and then receiving 56.2% of the vote, was elected president of Venezuela in 1998. He was re-elected in 2000 with 59.8% of the vote and again in 2006 with 62.8% of the vote. After winning his fourth term as president in the October 2012 presidential election with 55.1% of the vote, he was to be sworn in on 10 January 2013. However, the inauguration was postponed due to his cancer treatment, and on 5 March at age 58, he died in Caracas.Following the adoption of a new constitution in 1999, Chávez focused on enacting social reforms as part of the Bolivarian Revolution. Using record-high oil revenues of the 2000s, his government nationalized key industries, created participatory democratic Communal Councils and implemented social programs known as the Bolivarian missions to expand access to food, housing, healthcare and education. The high oil profits coinciding with the start of Chavez's presidency resulted in temporary improvements in areas such as poverty, literacy, income equality and quality of life between primarily 2003 and 2007, though extensive changes in structural inequalities did not occur. On 2 June 2010, Chávez declared an "economic war" on Venezuela's upper classes due to shortages, arguably beginning the crisis in Venezuela. By the end of Chávez's presidency in the early 2010s, economic actions performed by his government during the preceding decade, such as deficit spending and price controls, proved to be unsustainable, with Venezuela's economy faltering. At the same time, poverty, inflation and shortages increased.
Under Chávez, Venezuela experienced democratic backsliding, as he suppressed the press, manipulated electoral laws, and arrested and exiled government critics. His use of enabling acts and his government's use of propaganda were controversial. Chávez's presidency saw significant increases in the country's murder rate and continued corruption within the police force and government.Across the political spectrum, Chávez is regarded as one of the most influential and controversial politicians in the modern history of Venezuela and Latin America. His 14-year presidency marked the start of the socialist "pink tide" sweeping Latin America—he supported Latin American and Caribbean cooperation and was instrumental in setting up the pan-regional Union of South American Nations, the Community of Latin American and Caribbean States, the Bolivarian Alliance for the Americas, the Bank of the South and the regional television network TeleSUR. Internationally, Chávez aligned himself with the Marxist–Leninist governments of Fidel and then Raúl Castro in Cuba, as well as the socialist governments of Evo Morales in Bolivia, Rafael Correa in Ecuador and Daniel Ortega in Nicaragua. Chávez's ideas, programs, and style form the basis of "Chavismo", a political ideology closely associated with Bolivarianism and socialism of the 21st century. Chávez described his policies as anti-imperialist, being a prominent adversary of the United States's foreign policy as well as a vocal critic of neoliberalism and laissez-faire capitalism. He described himself as a Marxist.

Henri Philippe Bénoni Omer Joseph Pétain (24 April 1856 – 23 July 1951), commonly known as Philippe Pétain (, French: [filip petɛ̃]) or Marshal Pétain (French: Maréchal Pétain), was a general who commanded the French Army in World War I and became the head of the collaborationist regime of Vichy France, from 1940 to 1944, during World War II.
Pétain was admitted to the Saint-Cyr Military Academy in 1873 and pursued a career in the military, achieving the rank of colonel by the outbreak of World War I. He led the French Army to victory at the nine-month-long Battle of Verdun, for which he was called "the Lion of Verdun" (French: le lion de Verdun). After the failed Nivelle Offensive and subsequent mutinies, he was appointed Commander-in-Chief and succeeded in restoring control. Pétain remained in command for the rest of the war and emerged as a national hero. During the interwar period he was head of the peacetime French Army, commanded joint Franco-Spanish operations during the Rif War and served twice as a government minister. During this time he was known as le vieux Maréchal ("the Old Marshal").
On 17 June 1940, with the imminent Fall of France and the government desire for an armistice, Prime Minister Paul Reynaud resigned, recommending to President Albert Lebrun that he appoint Pétain in his place, which he did that day, while the government was at Bordeaux. The government then resolved to sign armistice agreements with Germany and Italy. The entire government subsequently moved briefly to Clermont-Ferrand, then to the town of Vichy in central France. It voted to transform the French Third Republic into the French State, better known as Vichy France, an authoritarian puppet regime that was allowed to govern the southeast of France and which collaborated with the Axis powers. After Germany and Italy occupied all of France in November 1942, Pétain's government worked closely with the Nazi German military administration.
After the war, Pétain was tried and convicted for treason. He was originally sentenced to death, but due to his age and World War I service his sentence was commuted to life in prison. His journey from military obscurity, to hero of France during World War I, to collaborationist ruler during World War II, led his successor Charles de Gaulle to declare that Pétain's life was "successively banal, then glorious, then deplorable, but never mediocre".
Pétain, who was 84 years old when he became Prime Minister and later Chief of State, remains both the oldest person to become the head of government and the oldest person to become the head of state of France.

Roberto Formigoni (born 30 March 1947) is an Italian politician. He was the president of Lombardy from 1995 to 2013. He is the former unofficial political spokesperson of the Communion and Liberation movement. On 21 February 2019, the Supreme Court of Cassation, the highest court in Italy, found him guilty of corruption and sentenced him to a definitive jail term of 5 years and 10 months. As a result, he has been detained in the prison of Bollate, near Milan, Italy, since February 2019.