The National Museum held the oldest known examples of indigenous mummies found in the Brazilian territory. The collection consisted of the body of an adult woman of approximately 25 years of age, and two children, one located at her feet, with an estimated age of twelve months, involved in a bundle, and a new-born, also covered by a mantle, positioned behind the head of the woman. This mummified set is composed of individuals that probably belonged to the group of the Botocudos (or Aimoré) people, of the Macro-Jê branch. They were found at the "Caverna da Babilônia", a cavern located in the city of Rio Novo, interior of the state of Minas Gerais, in a farm that belonged to Maria José de Santana, who donated the mummies to emperor Pedro II. As an act of gratitude for this favor, Pedro II awarded Maria José with the title of Baroness of Santana.