the Challant family went extinct with the death of Francesco Maurizio Gregorio in 1796 and his son Giulio Giacinto in 1802. Gabriella Canalis di Cumiana, widow of Francesco Maurizio Gregorio was married to Amédée-Louis Passerin d'Entrèves who became the new owner of Verrès and Issogne castles (as well as other manors) after her death. Later the two manors were sold to Alexandre Gaspard di Châtillon and from him to the Baron Marius de Vautheleret. In 1872 Marius de Vautheleret had to sell the two castles to pay his debts: Issogne was acquired by the painter Vittorio Avondo and Verrès by countess Paolina Crotti di Castigliole who sold it to Alfredo d'Andrade in 1894. See Furlan, Sonia. Issogne.VdA.it (ed.). "La storia del castello di Issogne". Archived from the original on 2012-01-26. Retrieved 2011-03-17.; Anna Maria Ferrero, La rocca di Verrès, pp.33-34.
the Challant family went extinct with the death of Francesco Maurizio Gregorio in 1796 and his son Giulio Giacinto in 1802. Gabriella Canalis di Cumiana, widow of Francesco Maurizio Gregorio was married to Amédée-Louis Passerin d'Entrèves who became the new owner of Verrès and Issogne castles (as well as other manors) after her death. Later the two manors were sold to Alexandre Gaspard di Châtillon and from him to the Baron Marius de Vautheleret. In 1872 Marius de Vautheleret had to sell the two castles to pay his debts: Issogne was acquired by the painter Vittorio Avondo and Verrès by countess Paolina Crotti di Castigliole who sold it to Alfredo d'Andrade in 1894. See Furlan, Sonia. Issogne.VdA.it (ed.). "La storia del castello di Issogne". Archived from the original on 2012-01-26. Retrieved 2011-03-17.; Anna Maria Ferrero, La rocca di Verrès, pp.33-34.
