She is the second youngest of nine children, founded by Anaclet Pembellot (1908, Tandou Mboulou - 2003, Pointe-Noire), attendant to the national telephone company; member of the clan Princely House of the Boulolo of Vista.

[3][4] Nowadays, one of the very populous neighborhoods of the district n°4 Loandjili of Pointe-Noire, the economic capital of Republic of Congo, still bears the name of Tchiali, because they were former landowners.

She passed her Law degree in 1969 and attended her professional training at Centre national d’etudes judiciaires de Paris until April 1970.

She then performed an internship at the District Court in Melun, where she was particularly interested in the problems of juvenile delinquency[7] Once her graduation studies were completed, Pembellot returned to her country Congo, in order to make up for the still insufficient number of executives at that time.

[citation needed] Other Congolese women lawmakers include: Pauline Yoba born Djembo, Jocelyne Milandou[8] (Vice-President of the Court of Auditors and budgetary discipline), Henriette Diatoulou, Maître Danielle Babin (lawyer at the Court of Appeal of Paris and former member of Council of the College of lawyers of Brazzaville in Congo), Nadia Josiane Laure Macosso, Sylvie Tchignoumba, Virginie N'dessabeka, Bertille Djembo Pemba, Caddy Elisabeth Ndala, Arlette Malonga, Marie Miboula Ngatséké et Dorothée Mana.

[7] She has held the following responsibility positions in the senior Congolese public service: During her career, Agathe Pembellot has worked with illustrious counterparts, essentially male such as Charles Assemekang (1926, Souanké - ?)

Mambou-Pembellot, Agathe 1985 « La preuve des crimes de sorcellerie devant le juge pénal congolais », Revue juridique et politique, 1-2 (janvier-mars) : p. 124-128.