The monastery church surprises you with its light through the large windows. The great Renaissance altarpiece is the work of Andrés de Melgar and Guillén de Holanda, commissioned by the Abbess, doña Leonor de Osorio around 1523 as a triptych, in which the theme is essentially based on Mary. Until 1975 it was in the presbytery, but is now to be seen at the foot of the church.