Born in 1926 in Lași, Romania, she was a puppeteer, director, pedagogue and theatre director, and from the 1950s onwards she made a major contribution to the renewal of this art in Europe and around the world. In her country of origin, she worked for the structuring, professionalization and artistic recognition of this popular art by taking, after directing studies at the Institute of Theatrical and Cinematographic Art (IATC) of Bucharest, the director of the Țăndărica theatre in Bucharest, a position she held for 37 years, from 1949 to 1986. Under his direction, the Țăndărica theatre (awarded the Erasmus Prize in 1978) gained international renown, being invited to perform in many countries.

Margareta Niculescu participated actively, with Henryk Jurkowski, in exchanges between puppeteers within the International Union of Puppetry (UNIMA), an association in which she created, in 1976, an international commission on professional training for puppeteers.

In the middle of the Cold War (1958), it was at the initiative of the first World Puppet Festival, with companies from more than 30 countries.

Margareta Niculescu knew how to surround herself with the greatest artists of her time, in and outside the disciplinary field of puppetry, which she worked to open up.

His meeting with Jacques Félix, founder of the Festival mondial des théâtres de marionnettes in Charleville-Mézières in 1961, was fruitful and decisive for the role Charleville-Mézières would play in the world of puppetry. In 1985-1986, Niculescu became the director of the International Puppetry Institute (IIM) created by Jacques Felix four years earlier. In 1987, she co-founded, again with Jacques Félix and in Charleville-Mézières, the École nationale supérieure des arts de la marionnette under the tutelage of the Ministry of Culture, the only school of puppeteers in France of international reputation, of which she was the director, from its inception to 1998.

In 2003, the President of Romania, Ion Iliescu, awarded Margareta Niculescu the rank of Commander of the Order of Romanian Cultural Merit. The Ministry of Culture elevated her to the rank of Knight of the Order of Arts and Letters.

The Minister of Culture sends her thoughts to her family and loved ones, as well as to her students and all those whose professional and intellectual careers she has marked.