Two letters written by an unidentified sender to Diego Naselli of Naples, pertaining to the guardianship and inheritance of Princess Marianna Grifeo di Partanna, daughter of Prince Leopoldo Grifeo di Partanna. The Prince and his wife died abruptly in 1826 without clear instructions regarding the management of their estate and the custody of their daughter. The first letter, dated 1826, informs Diego Naselli that the court of law of Naples had granted him guardianship of Marianna. The second letter, written in 1827, contains detailed information concerning the sale of part of the estate of Marianna, which occurred on the Paris stock exchange trading floor and through private investors. The financial operation was quite complex, and involved currency and stock trading on one hand, and large real property sales on the other. The Rothschild brothers (likely indicating the Rothschild FreĢres banking business) and the Kingdom of Naples appeared to be among the investors.