di Campiglione, received the definitive deed of cession from the Austrian delegate Don Giuseppe dei Medici, on condition that the "rights, statutes, privileges of the nation" that had been the subject of diplomatic negotiations were preserved. The island thus entered the Italian orbit after the Iberian one, although this transfer would not initially entail any social nor cultural and linguistic changes: Sardinia would still retain for a long time its Iberian character, so much so that only in 1767 were the Aragonese and Spanish dynastic symbols replaced by the Savoyard cross. Until 1848, the Kingdom of Sardinia would in fact technically remain an island state with its own traditions and institutions, albeit without summa potestas and in personal union as an overseas possession of the House of Savoy. The Sardinian language, although practiced in a state of diglossia, continued to be spoken by all social classes, its linguistic alterity and independence being universally perceived; Spanish, on the other hand, was the prestige code known and used by the Sardinian social strata with at least some education, in so pervasive a manner that Joaquín Arce refers to it in terms of a paradox: Castilian had become the common language of the islanders by the time they officially ceased to be Spanish and, through their annexation by the House of Savoy, became Italian through Piedmont instead. Given the current situation, the Piedmontese ruling class which held the reins of the island, in this early phase, resolved to maintain its political and social institutions, while at the same time progressively hollowing them out as well as "treating the [Sardinian] followers of one faction and of the other equally, but keeping them divided in such a way as to prevent them from uniting, and for us to put to good use such rivalry when the occasion presents itself". According to Amos Cardia, this pragmatic stance was rooted in three political reasons: in the first place, the Savoyards did not want to rouse international suspicion and followed to the letter the rules dictated by the Treaty of London, signed on 2 August 1718, whereby they had committed themselves to respect the fundamental laws of the newly acquired Kingdom; in the second place, they did not want to antagonize the hispanophile locals, especially the elites; and finally, they lingered on hoping they could one day manage to dispose of Sardinia altogether, while still keeping the title