Upon his refusal, Pius was taken prisoner, and on 20 February was escorted from the Vatican to Siena, and thence to the Certosa near Florence. The French declaration of war against Tuscany led to his removal (he was escorted by the Spaniard Pedro Gómez Labrador, Marquis of Labrador) by way of Parma, Piacenza, Turin and Grenoble to the citadel of Valence, the chief town of Drôme where he died six weeks after his arrival, on 29 August 1799, having then reigned longer than any pope.