Definition of "matron"

grave from her cradle, insomuch that she was a matron before she was a motherThe spelling has been modernized.

1655, Thomas Fuller, edited by James Nichols, The Church History of Britain, […], new edition, volumes (please specify |volume=I to III), London: […] [James Nichols] for Thomas Tegg and Son, […], published 1837

But there’s no bottome, none / In my Voluptuouſneſſe : Your Wiues, your Daughters, / Your Matrons, and your Maides, could not fill vp / The Ceſterne of my Luſt, and my Deſire / All continent Impediments would ore-beare / That did oppoſe my will.

c. 1606 (date written), William Shakespeare, “The Tragedie of Macbeth”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act IV, scene iii], page 146, column 2

“A tight little craft,” was Austin’s invariable comment on the matron; and she looked it, always trim and trig and smooth of surface like a converted yacht cleared for action. ¶ Near her wandered her husband, orientally bland, invariably affable, […].

1907 August, Robert W[illiam] Chambers, chapter IX, in The Younger Set, New York, N.Y.: D. Appleton & Company