The creation of the Norman kingdom of Sicily was complemented by the development of a unique court milieu encompassing elements from the Latin West, Byzantium, and the Islamic world. The churches of Palermo, in particular, became the focus of a sophisticated project of experimentation and combination of different artistic traditions, to convey an artificial image of equilibrium among élites and communities of three different denominations: Latin, Greek-Byzantine, and Arabo-Christian. Through the creation and subversion of architectural boundaries, the promotion of certain forms of visual hybridity, the transgression of artistic media, and the articulation of new liminal spaces, the Norman rulers transformed their churches and cathedrals into an ideal stage for performing their liturgy of kingship, and conveying the message of a multi-faceted religious system unified and harmonized only through the king, as supreme head of the Church and vicar of Christ.