Zawiera też: Aneks nr 1: Katalog zachowanych diecezjalnych "libri ordinarii" powstałych na Śląsku w pierwszej połowie XV w. ; Aneks nr 2: Rękopisy dotychczas błędnie zaliczane do grupy libri ordinarii.

Summary: Libri ordinarii were not liturgical books - they were not used during the liturgy, but to prepare it. First of them appeared in monstasteries and the oldest surviving manuscripts were written in the 11th century. Their creation stemmed from codification of liturgical customs, which up to that time were adomain of oral tradition. This process lasted until late Middle Ages even to the Council of Trent (1545–1563) and involved monasteries, cathedral chapters and other corporations of the clergy as well as parishes. The codified liturgical customs were also revised, complemented and finally written down. These manuscripts had different titles and the content organisation also often varied, but due to their common features and purpose the researchers include them into agroup called libri ordinarii in modern historiography.S ilesian manuscript of this type were studied several times already, but because of defective character of some of the research attempts, numerous errors and ambiguities based on insufficient source criticism, as well as relying solely on information from library catalogues, aneed arose to prepare adetailed edition, which would correct the current state of knowledge, of the catalogue of libri ordinarii from the 1st half of 15th century orig-inating from Silesian diocesan churches and canons regular’s monasteries.The idea of creating libri ordinarii in Silesia appeared in the circle of catheral chapter or the bishop of Wrocław, with models coming from the countries constituting the Crown of Bohemia, of which Silesia was also apart at that time. It was very likely an initiative of bishop Wacław (1386–1417), who in 1370s studied at the University of Prague. During his time in office, aprocess of liturgy unification in the diocese of Wrocław began, con-tinued by his successors, Konrad (1417–1447) and Piotr Nowak (1447–1456). Not only bishop Wacław had broad relations with Bohemia and the Prague court– also his closest collaborators studied in Prague (49 members of the cathedral chapter in 1390–1409). The creation timeframe of the oldest Silesian libri ordinarii is set by the two synods that took place in Wrocław. First of them, in 1410, in Article 6 of the synodal statutes, introduced in the diocese of Wrocław, under penalty of canon law, the order to perform liturgy according to the customs of the St.John the Baptist Cathedral’s choir. Consequently, manuscripts containing adescription of liturgy according to the model of cathedral liturgy in agiven diocese started (that is, libri ordinarii) to appear (the 1st one– thay is, the cathedral one, constituting the normative text for the liturgy unification then intiated, was written pre-sumably already in 1410). Of them, nine survived till today (one in acopy from 1584). The 2nd synod, in 1448, reminded Article 6 of the previous one, announcing additionally that aunified cathedral ordinaries would be issued in the same year.Aso to speak side effect of the liturgy unification in the diocese of Wrocław in the 1sthalf of 15th century using libri ordinarii was acustom to venerate church feasts in the triple rite (that is, triplex), which previously was adomain of only the cathedral choir, but at that time began to appear also in the sources and liturgical observances of collegiate and parrish churches in the diosecese of Wrocław. This should be connected not only with the process of libri ordinarii development, but also with the practice of publishing aliturgical calendar once ayear by the cathedral chapter. Local clergy began to model their liturgy after the cathedral and implement the church holidays’ veneration in the triplex rite, adopting typical cathedral liturgy and introducing the liturgical calendar issues by the chapter, which led to the custom of celebrating church feasts in the triplex rite becoming widespread.