Statute of Senna
The Statute of Senna (Atrescan: Statuto di Senna) was a treaty signed in 1812 between nobles of the Kingdoms of Satesia and Callura-Friola, as well as several smaller Atrescan duchies and kingdoms, and James III, a Camrian emperor of the Alydian Empire. The treaty would oversee the formal abolition of the Empire, as well as the formal relinquishing of the emperor's titles by James III, who was shortly thereafter banished back to Camria. The treaty also established several "regions" within the former domains of the Empire, which largely set the precedent for borders leading up to the First Great War, but did not mandate the creation of singular kingdoms in these regions. The treaty was signed following the Boccafalco Rising in 1811, where many Atrescan kingdoms revolted against the Empire due to its reliance on the Midrasian-influenced pontificate. The treaty also set the basis for Atrescan nationalism and later the Atrescan Wars of Unification.
Precursor events to the treaty stretch as far back as the Pontifical War, where the Mydran Kingdom invaded the Empire, taking the Riviera region as well as gaining influence over the Pontificate. The Pontiff's pre-established role within the framework of the Empire gave Midrasia considerable influence of its internal affairs, despite being located outside of the Empire. Couple with the accession of several Thiaric emperors from Camria, who limited the emperor's power and gave increased power to the home rulers of the states that made up the Empire, essentially ending Atresca's method of dominance over western Asura and relegating the state in Asuran geopolitics. Disgruntled with Atresca's newfound status, Atrescan nobles revolted in the city of Boccafalco, sieging and taking the city, before moving on to much of Atresca, attracting an increased following as they went. With the Empire's heartland now around half rebel-controlled, the nobles demanded to meet the Thiaric Emperor James III in Senna, who had little means of defending himself due to previous reforms he had introduced in 1805 relieving states of their obligation to join the Emperor in any wars. James III signed the treaty on April 19, relieving all states of their Imperial duties and binds, relinquishing his titles and abolishing the Empire.