Nominally Messalina, serving as a prostitute under the pseudonym of Lisisca (literally, 'Messalina in Lisisica's booth'), deriving from accounts such as this one of Juvenal's:

Then look at those who rival the Gods, and hear what Claudius endured. As soon as his wife perceived that her husband was asleep, this august harlot was shameless enough to prefer a common mat to the imperial couch. Assuming night-cowl, and attended by a single maid, she issued forth; then, having concealed her raven locks under a light-coloured peruque, she took her place in a brothel reeking with long-used coverlets. Entering an empty cell reserved for herself, she there took her stand, under the feigned name of Lycisca, her nipples bare and gilded, and exposed to view the womb that bore thee, O nobly-born Britannicus! Here she graciously received all comers, asking from each his fee; and when at length the keeper dismissed his girls, she remained to the very last before closing her cell, and with passion still raging hot within her went sorrowfully away. Then exhausted by men but unsatisfied, with soiled cheeks, and begrimed with the smoke of lamps, she took back to the imperial pillow all the odours of the stews.

Agostino Carracci (1557–1602)
	Description	Italian painter, engraver and drawer
	Date of birth/death	16 August 1557	22 March 1602
	Location of birth/death	Bologna	Parma
	Work location	Rome (1581); Venice (1582); Milan (1583); Cremona (1585); Rome (1594); Bologna (1595); Parma (1597); Bologna (1600); Bologna (1583–1584); Parma (1586–1587); Venice (1588–1589); Bologna (1589–1594); Rome (1597–1600); Parma (1600–1602)
	Authority file	: Q316269 VIAF: 61617497 ISNI: 0000000121357445 ULAN: 500115349 LCCN: n87839265 NLA: 36010226 WorldCat

This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason: Public domainPublic domainfalsefalse This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain". This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details.