Born Olivier Aimard in Paris in 1818, he was the unacknowledged son of General François Sébastiani de la Porta and Mme. de Faudoas. Raised by a foster family, Aimard went to sea as a young boy on a herring ship and later served briefly in the French Navy. His adventurous youth took him to the Americas, where he claimed to have been adopted by a Comanche tribe. He returned to France in 1847, but soon departed again for Mexico, participating in a failed mining and military expedition led by the Duke de Raousset-Boulbon in 1852.
Upon returning to France, Aimard married Adèle Lucie Damoreau in 1854 and embarked on a highly prolific writing career. He authored approximately seventy books, primarily focusing on American Indians, Latin America, and the American frontier. His works, which were translated into more than ten languages, blended sensational adventure with autobiographical, anthropological, and historical details. Notable works include Curumilla, which drew from his Mexican expedition, and Te Land en Te Water, which reflected the tragic murder of his half-sister, the Duchess de Choiseul-Pralin.
Aimard's popularity waned after he wrote about the French defeat in the Franco-Prussian War, during which he had served with other press members. Despite this decline in domestic readership, he remained a celebrated figure abroad; in 1879, he was warmly received by Emperor Dom Pedro II during a visit to Brazil. This journey inspired his travelogue, Mon Dernier Voyage, Le Brésil Nouveau. Aimard died in 1883, leaving behind a legacy of frontier literature that captivated global audiences.
