Official report of the Royal Patronage exercised by the Catholic Church in Sicily, following the entry into Sicily of the Austrians, which lists all the Sicilian localities over which the church exercised the right of patronage, with the related annual revenues, and in second part the provision offices with weights and wages. At the end of the volume, two viceregal decrees are reported, in Spanish, dated 13 June 1632 and 28 March 1689. The royal patronage over the Sicilian church, definitively granted by the Pope in 1621, in fact allowed the court of Madrid to manage with great freedom the presentations of the bishops and abbots of the island. Relatives of the king, officials and servants of the Monarchy, cardinals of the Roman curia, were often preferred to Sicilian candidates, with frequent violations of the so-called privilege of the alternative (alternation between foreigners and Sicilians in the collation of ecclesiastical benefits). The controversies on the matter, in the 1630s, also moved within the Council of Italy, animating an interesting debate and contrasting the positions of the Sicilian and Neapolitan regents with those of the Spanish regents, without however reaching any concrete solution that would put a limit on Madrid's abuses.