Source portrait : https://www.gazette-drouot.com/en/lots/25807796-french-school-circa-1820-3a---
FRENCH SCHOOL circa 1820: PORTRAIT OF GABRIEL DENIS DEVILLE (1772-1839), in Swiss Guard officer's uniform, wearing the Cross of Saint Louis and the medal of August 10, 1792, and holding the scroll of the Relation of August 10, 1792. Oil on canvas. 72.5 x 59.5 cm.
Ordre de Saint Louis : https://www.gazette-drouot.com/en/lots/25807797-france--ordre-militaire-de---%7D
Médaille du 10 août 1792 : https://www.gazette-drouot.com/en/lots/25807798-switzerland--swiss-guards---%7D
Passeports lors de son émigration : https://www.gazette-drouot.com/en/lots/25807799-set-of-twenty-two-passports---%7D
Souvenir des Tuileries : https://www.gazette-drouot.com/en/lots/25807800-set-of-three-personal-souvenirs---%7D
Lettres d'anoblissement : https://www.gazette-drouot.com/en/lots/25807801-deville-o-keefe--set-of-souvenirs---%7D
Franc maçonnerie : https://www.gazette-drouot.com/en/lots/25807802-freemasonry--two-patents-3a---%7D