King Victor Emmanuel I of Sardinia had himself only just recently recovered this territory. This extension of the cantonal land became known as the "communes réunies", hence the road of this name in Grand-Lancy. It was also stated that the non-Swiss customs posts were to be situated at least one league (approximately five kilometres) from the new Swiss frontier, thus creating the "zone franche" on both sides of the canton. Into the bargain, the Great Powers meeting in Paris recognized the "permanent neutrality of Switzerland" and agreed that Swiss neutrality was, indeed, in the common interest of all European countries. Pictet himself wrote the text of the declaration of neutrality. In the summer of 1816 Pictet de Rochemont returned to his sheep and his maize fields having perfectly succeeded in his mission. The Swiss parliament or Diet (Tagsatzung), as it was at that time, expressed its recognition of his services. He died on 28 December 1824 at Lancy. A statue of Charles Pictet de Rochemont has been erected Rampe de la Treille at the entrance of the Old Town in 1970. Diva International