Juana’s precocious intellect attracted  attention from the royal court in Mexico City, and when she was sixteen, the viceroy and his wife took her in  as their lady-in-waiting.
Inteligenţa precoce a Juanei atrăgea atenţia curţii regale din oraşul Mexic, iar la vârsta de 16 ani, viceregele şi soţia sa au luat-o la ei ca damă de companie.