Enitan Bereola II, Gentlewoman: Etiquette for a Lady, from a Gentleman (2014)
Isabella Whitney, The Copy of a Letter, Lately Written in Meter by a Young Gentlewoman: to her Unconstant Lover, ca. 1567 earliest known volume of English language secular poetry published by a woman
Jane Anger: Her Protection for Women to defend them against the scandalous reports of a late surfeiting Lover... Written by Jane Anger, Gentlewoman at London (1589)
Richard Braithwait's The English Gentlewoman (1631), followed his The English Gentleman (1630), both being books about acceptable behaviour.
"Helena, a Gentlewoman", in All's Well That Ends Well
A Yorkshire Gentlewoman and Her Son by George Chapman (17th century)
"Quartilla, gentlewoman to Triphoena", in Holland's Leaguer (1631) by Shackerley Marmion