In TFQ there are many allusions to Saint George and other Saints. Canonisation is a Catholic idea, so why did Spenser add myths and other pagan idea?

While ostensibly constructing an epic devoted to theological virtues of the Christian faith, Spenser cannot resist including his beloved classical mythology and legends in the work. Alongside the Redcrosse knight stands the half-satyr Satyrane; Calidone, the knight of Courtesy, spends time with rustic shepherds and a magical storyteller; and the virtuous Queen of England herself is depicted as Gloriana, Queen of the Faerie. To Spenser, there was no contradiction between classical aesthetic values and Protestant Christianity.