[1] Victor Promontorio was born in 1912 in Kintambo, municipality of Léopoldville in the Belgian Congo, to an Italian father and a Congolese mother.

[2] When his mother died in 1919, his father, a well-known merchant at the time, sent him to Brussels, Belgium, where he studied at the Saint-Louis Institute.

The Congolese side was represented by the different political parties of the country such as Patrice Lumumba's Mouvement National Congolais and Joseph Kasa-Vubu's ABAKO.

Promontorio became a political adviser to Jean Bolikango's Association des Ressortisants du Haut-Congo (ASSORECO) during the Economic Roundtable Conference.

[8] After the Conference, Promontorio moved to Congo, where he became a senator[9] for the Équateur Province with the support of the National Unity Party [fr], which absorbed Assoreco.