Sylvain de Bosredon

Following family tradition, he joined the Order of St John in Hospitaller Malta and was professed a knight of the Langue of Auvergne on 23 December 1778.

De Bosredon performed administrative duties for the Hospitallers, and he was knowledgeable in the Order's statutory law and worked as a procurator for the Langue of Auvergne.

During the 1780s, he went on a tour of Calabria, Lipari and Sicily along with fellow Hospitaller knight and geologist Fra Déodat Gratet de Dolomieu, painting many landscapes in the process.

[1] In 1790, de Bosredon rented a country house known as Casa Blacas located a couple of miles outside the Hospitallers' capital of Valletta, Malta.

According to Count Saverio Marchese, "his skull was cleft in two with a mattock like a melon without any ceremony and more according to the usage of war, and was immediately buried in the clothes he was wearing in a shallow grave at the main door of the villa of the garden near the two columns.