Princess Leopoldina of Brazil in the context of "Pedro II of Brazil"

An aunt is a female individual who is a sibling of a parent or married to a sibling of a parent. Aunts who are related by birth are second-degree relatives. Alternate terms include auntie or aunty.

Aunt, auntie, and aunty also may be titles bestowed by parents and children to close friends of one or both parents who assume a sustained caring or nurturing role for the children. Children in some cultures and families may refer to the cousins of their parents as aunt or uncle due to the age and generation gap. The word comes from Latin: amita via Old French ante and is a family relationship within an extended or immediate family.

Prince August Leopold of Saxe-Coburg and Gotha and Braganza (6 December 1867 – 11 October 1922), known in Brazil as Dom Augusto Leopoldo, was a prince of the Empire of Brazil and of the House of Saxe-Coburg and Gotha-Koháry. He was the second of four sons born to German Prince Ludwig August of Saxe-Coburg and Gotha and Princess Leopoldina of Brazil.

The second grandson of the Emperor Pedro II, the prince was, for some years included among the presumptive heirs to the Imperial Crown of Brazil. Their descendants would form the Saxe-Coburg and Gotha branch of the Imperial House of Brazil.

The Saxe-Coburg and Bragança Branch (Portuguese: Ramo de Saxe-Coburgo e Bragança) is a cadet branch of the Imperial House of Brazil and of the House of Saxe-Coburg and Gotha-Koháry, itself a branch of the House of Saxe-Coburg and Gotha. The house was founded with the marriage of Princess Leopoldina of Brazil to Prince Ludwig August of Saxe-Coburg and Gotha in 1864. Two of the first four princes of the house were recognized as Princes of Brazil due to the apparent infertility of the Princess Imperial, their aunt, which placed them as heirs presumptive to the throne and made their offspring a junior branch of the Imperial House of Brazil, behind the senior branch which is the House of Orléans-Braganza.