Sebastián Calvo de la Puerta y O'Farrill

Sebastián Nicolás de Bari Calvo de la Puerta y O'Farrill, 1st Marquess of Casa Calvo, KOS (August 1751 – 27 May 1820) was a Spanish nobleman and soldier who served as Governor of Louisiana between 1799 and 1801.

Early life and career He was born in Artemisa, Cuba, around 1751 or possibly 1754, according to different sources. He was the son of Pedro Calvo de la Puerta and Catalina O'Farrill. He pursued a military career from an early age, starting with enrollment as a cadet in the Company of Nobles in 1763.

While living in Cuba, he married María Luisa Peñelvar y Navarette (1764–1792), a native of Havana, in 1781.

Governor of Spanish Louisiana At the time of Governor Gayoso's death in 1799, Casa Calvo was residing in Cuba, where he was serving as a judge advocate. Casa Calvo was appointed interim military governor until the arrival of Juan Manuel de Salcedo, whose arrival was delayed by ill health until 1801. William C.C. Claiborne, governor of the Territory of Orleans, with whom Casa Calvo was negotiating, did not trust Casa Calvo and ordered him to leave in 1806.

Casa Calvo departed for Pensacola, narrowly avoiding a shipwreck en route, and requested permission to lead a military expedition against Louisiana. His request was denied, and he moved to Madrid. He was a fervent Bonapartist during the reign of Joseph Bonaparte; after the fall of the Bonapartists in Spain, he fled to Paris, where he remained until his death in 1820.