Viceroy Enríquez

Source: Margo Glanz, Sor Juana Inés de la Cruz; saberes y placeres. Toluca, México: Instituto Mexiquense de Cultura, 1996, p. 40.
Portrait: Anonymous. "Fray Payo Enríquez de Rivera, Arzobispo de México." Oil on canvas, 17th century.
Comments: This viceroy, as you can see in his portrait, was also a priest and the archbishop of the all-powerful diocese Mexico.
Humanities questions: Separation of Church and State? What makes this a Spanish-style (Spanish-American) baroque painting?