 The result, the 120-page "Dritto della Corona di Napoli sopra Piombino", was published around 1760.On 21 March 1801, by the Convention of Aranjuez, France and Spain agreed to establish the Kingdom of Etruria out of the old Grand Duchy of Tuscany and to award it the Principality of Piombino, while allowing France to annex the Tuscan part of Elba (Portoferraio).This fulfillment of these terms depended on the agreement of Naples.