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.
O intelecto precoce de Juana chamou a atenção da corte real na cidade do México. Quando tinha 16 anos, o vice-rei e a mulher nomearam-na sua dama de companhia.