The town of Bourdigny, which belonged to the lords of Gex, joined the municipality in 1749 with the treaty of Paris. After the reformation, the region of the Mandement, comprising Peissy, Satigny, Choully, Peney, Bourdigny, and Dardagny, would remain territories administered by the secular authorities of the Republic of Geneva, cut-off from the city by French territory. The lands would finally geographically linked to Geneva with the Congress of Vienna in 1815 and with the Treaty of Turin in 1816, which granted several towns to the new canton from France and Savoy in order to create geographical continuity, amongst which the towns Aire-la-Ville, Meyrin, Vernier, and Bernex, that now border Satigny. Peney and its castle used to belong to the municipality of Russin and they only joined Satigny in 1817.