It is known that those of the main chapel and some of the transept were created by the glass-maker Jacobo Dolfin and his servant Luis, and those of the southern transept and some large windows of the main nave on the Epistle side, by the masters Pedro Bonifacio, Cristóbal, and the German monk Pedro.
Tiste od Sandovala in Rojasa je naslikal Tristán, do Moscosa, Ricci, do Iguanza, Vicente López.