Sor Juana Inés de la Cruz (1651-1695) was one of most illustrious Mexican writers and scholars of the colonial period.

This page from the manuscript “Book of Professions” of the convent of San Gerónimo in Mexico City, which Sor Juana entered in 1669, features a written affirmation of her religious vows, signed by the famous nun in her own blood.

From the Dorothy Schons Papers at the Benson Latin American Collection.