In February 1724, a scandal involving Senesino and the soprano
Anastasia Robinson erupted which had long-lasting impact on both singers, more particularly Robinson. Although the exact details of the initial incident are unknown, scholars suspect that the incident occurred during a performance of
Attilio Ariosti's
Vespasiano e Artaserse which had its world premiere earlier on 14 January 1724. In this opera, Robinson's character Gesilla embraces Senesino's character Titus while they share mutual sentiments of love. The incident in question involved a public altercation of some kind in which Robinson accused Senesino of being too sexually forward in his acting, and Senesino responding with some sort of insulting remarks that attacked her virtue and beauty. This in turn resulted in Robinson's husband,
Charles Mordaunt, 3rd Earl of Peterborough, coming to her defence. The Earl, however, was not publicly known to be Robinson's husband, as they had secretly married in c. 1722–1723: in view of Robinson's lower social status as a stage performer, he refused to acknowledge her publicly as his wife. Therefore, it was generally believed in society that Robinson was the Earl's
mistress. The event of this public exchange between Senesino, Robinson, and the Earl became topical fodder for Irish satirist
Jonathan Swift who circulated the story. The subject was widely gossiped about in British society, and Robinson in particular was labelled a hypocrite for complaining of sexual impropriety while simultaneously being the Earl's mistress. Swift's writing in turn inspired the creation of a number of obscene, misogynistic, and at times sexually subversive
epistles written about Robinson, Senesino, the Earl of Peterborough, and the castrato
Farinelli between 1724 and 1736. These satirical epistles were penned by anonymous authors, and were written from the perspective of one of the individuals involved in the scandal. The first of these was
An Epistle from Senesino to Anastasia Robinson which was dated 17 February 1724. Soon after, the dramatist
Aaron Hill in his literary periodical
The Plain Dealer published a response to this letter entitled
An Answer from Mrs. Robinson. Thus began a chain of literary epistles that extended over a twelve-year period. These epistles have become a subject of study by scholars of
Restoration literature. ==Return to Italy and retirement==