The Letters of a Portuguese Nun (Marianna Alcoforado) by Edgar Prestage (translator)Call Number: Online - free - HathiTrust
"Mariana Alcoforado, (baptized April 22, 1640 , Beja, Portugal—died July 28, 1723, Beja), Portuguese nun, long believed to have written Lettres portugaise (1669; “Portuguese Letters”), a collection of five love letters, though most modern authorities reject her authorship." Encyclopaedia Britannica Online