From the longer English Wikipedia page [1]

Grigore Preoteasa (August 25, 1915 – November 4, 1957) was a Romanian communist activist, journalist, and politician, who served as Communist Romania's Minister of Foreign Affairs between October 4, 1955 and the time of his death.

Selected a member of the Central Committee in December 1955, replacing Leonte Răutu (Wikipedia page [2]) as head of the Propaganda Section, he became secretary of the Central Committee and deputy member of the Politburo in June 1957. He was probably seen by Gheorghe Gheorghiu-Dej as a replacement for Răutu, who was by then falling out of favor.

As minister, Preoteasa was noted for handling the aftermath of the Hungarian Revolution of 1956, and for detaining on Romanian soil those Hungarian politicians who had been captured by the Soviets — including Imre Nagy (kept in a Securitate building in Snagov) and György Lukács. Following a request from János Kadar, Romanian authorities referred to many of these arrests as "granting asylum", implying that the Soviets had extended their protection in the face of counterrevolution. His government office was taken over by Ion Gheorghe Maurer in July 1957.

A member of the PMR delegation to the 40th anniversary of the October Revolution in Moscow (alongside Gheorghiu-Dej, Chivu Stoica, Alexandru Moghioroş, Ştefan Voitec, Ceauşescu, and Răutu), Preoteasa died at Vnukovo International Airport, minutes after their Aeroflot aircraft missed the landing field and caught fire.

The Romanian Wikipedia page is [3]