Born in Târgu Jiu, Petrovicescu attended the military school for infantry in Craiova from 1896 to 1899, the officers' school in Bucharest from 1899 to 1900, and the military school for infantry and cavalry from 1906 to 1908. During World War IRomanian Campaign, he fought on the Moldavian front. Following the Union of Bessarabia with Romania in 1918, Petrovicescu, by then a high-ranking officer, was named chief of the general staff in that province's territorial command. Later, until 1933, he was royal commissioner at the Chişinău army corps. After being named Brigadier General, at the beginning of 1934 he was transferred to the national capital, where he served as royal commissioner at the Bucharest Military Tribunal. In this capacity, he was part of a panel of judges who tried the Iron Guard assassins of Prime Minister Ion G. Duca and their moral accomplices. The latter category included Guard leaders Codreanu and retired general Gheorghe Cantacuzino-Grănicerul, as well as prominent affiliates such as Gheorghe Clime, Nichifor Crainic and Mihai Stelescu. He voted to convict the assassins themselves, but supported the acquittal of Codreanu and Cantacuzino-Grănicerul. He soon after secretly joined the banned Guard and, in recognition for his stance during the trial, was named a member of its senate. At Codreanu's trial in April–May 1938, Petrovicescu appeared as a witness for the defence, praising Codreanu's "proper behaviour" and "patriotism". Due to his repeatedly expressed pro-Iron Guard sympathies, King Carol II retired him in September 1938. Two years later, following Carol's abdication and the assumption of power by General Ion Antonescu and the Guard, the new ruling party recommended Petrovicescu as Interior Minister, and he assumed that post. In October 1940, upon the recommendation of vice premier and new Legion head Horia Sima, Antonescu promoted Petrovicescu to the rank of Divisional General retroactive to June 1, 1938, and returned him to active duty. As minister, he worked with Sima to create a well-armed Legionary police force, and actively supported arresting or even killing politicians who in the past had suppressed the Guard. The new police force also turned itself into a tool of racial repression, targeting the Jewish-Romanian community. Constantin Petrovicescu irritated Antonescu by upholding public acts of violent retribution, and this fall-out acquired importance by the close of 1940. In particular, the Conducător suspected his Legionnaire subordinate of having played a part in organizing the Jilava Massacre of November 1940, during which the political elite associated with Carol's rule was mass murdered. On January 19, 1941, after the Nazi German Major Döring had been mysteriously assassinated in Bucharest, Sima's faction publicly questioned Antonescu's commitment to Romania's Axis allies, and the Conducător used the occasion to strip Petrovicescu of his cabinet office. The official explanation for his decision was that Petrovicescu had not taken the proper measures to secure the perimeter within nine hours of Döring's shooting. The next day, as Antonescu signaled his marginalization of the Guard, a large part of the country was gripped by a Legionnaires' rebellion. At an early stage of the riots, leading Guard member Viorel Trifa issued a manifesto which directly blamed the "brave and upright" minister's dismissal on Antonescu's alleged sympathy for "the British government of freemasons", accompanying such claims with antisemitic language. Other such theories popularized by the Legionnaires had it that Antonescu had personally encouraged Demetrios Sarandos, Döring's Greek-Turkish killer, to carry out his action, thus aiming to discredit Petrovicescu's political abilities. Petrovicescu was an important destabilising element during the subsequent events, which saw his and the Guard's fall into disgrace. He is believed to have had the personal initiative for one of the most notorious acts of violence carried out at the time, by ordering the Legionnaires to occupy the headquarters of the Siguranţa Statuluisecret police and open fire on the soldiers and civilians outside. Petrovicescu was arrested and tried along with other former Legionnaire government officials. In summer 1941, he was sentenced to five or seven years' imprisonment. In 1944, he was sent to Sibiuto live under house arrest. Following the King Michael Coup, which changed Romania's political orientation away from the Axis, Constantin Petrovicescu was again arrested, being held in the prisons of Alba Iulia and later Sibiu. In 1946, he was tried before the first of a series of Romanian People's Tribunals as a war criminal. Sentenced to life imprisonment, he was sent to Aiud prison after his appeal was rejected. He died there three years later.
