Laurean Rugambwa was born to an aristocratic family in Bukongo, Tanganyika (present-day Tanzania), and baptized with his parents at age 8, on March 19, 1921.
Laurean Rugambwa je rođen u plemićkoj obitelji u Bokongu u Tanganjiki (današnja Tanzanija), a krstio se s svojim roditeljima u dobi od 8 godina, 19. ožujka 1921.