 In 1387, Bishop Adhémar Fabry granted the town its great charter, the basis of its communal self-government, which every bishop on his accession was expected to confirm.The line of the counts of Geneva ended in 1394, and the House of Savoy came into possession of their territory, assuming after 1416 the title of Duke.The new dynasty sought to bring the city of Geneva under their power, particularly by elevating members of their own family to the episcopal see.