The old but wealthy Lady Youthly is due to marry George, an impoverished
younger brother. George's father, Sir Rowland, is due to marry Lady Youthly's granddaughter, Tereisa. Mirtilla is the 'amorous jilt' of the title. She previously dropped George in order to marry the wealthy Sir Morgan Blunder. She has an affair with George's friend Prince Frederick, and also pursues a young page (in reality the page is George's sister Olivia disguised as a boy). In the end, Prince Frederick gives Mirtilla an alibi and returns her to Sir Morgan, who agrees to let the Prince visit her in the future. The play concludes with a wedding between George and Tereisa, and a celebratory dance. == Reception ==