Giovanni II d'Aragona e la partecipazione del Regno di Sardegna e Corsica nella guerra civile catalana

This dissertation partially makes up for the lack of Sardinian, Italian and Iberian historiography, with particular reference to the role of John II of Aragon in the Kingdom of Sardinia and Corsica (1458-79). Given the considerable amount of documents available on the topic, mostly unpublished and stored in archives, both in Italy and abroad, it has been necessary to perform a scientific analysis of unpublished data; these data have then been integrated with those retrieved from published documents, along with data gathered from other literary sources and chronicles. As a result, our work has been subdivided into four sections, featuring a huge collection of documents. After an introduction on the scientific methodology applied to the research process, we have moved on to examine the kingdom of John II after his accession to the throne of Aragon and the reasons for the break out of the ten-year Catalan Civil War, as well as its repercussions on the crisis on the kingdom of Sardinia and Corsica. The period after the Civil War has been taken into consideration and, and particular attention has been paid to the end of the marquisate of Oristano, which has marked the history of the Kingdom of Sardinia and Corsica in the 1470’s. Finally, in the appendix, 111 documents are to be found, with the summaries and the transcription of the most important texts used during the research, borrowed from both the Archive of the Crown of Aragon in Barcelona and the State Archive of Cagliari.