One verse

Srimad Bhagavatam 6.1.21

6.1.21

कान्यकुब्जे द्विज: कश्चिद्दासीपतिरजामिल: । नाम्ना नष्टसदाचारो दास्या: संसर्गदूषित: ॥ २१ ॥

kanyakubje dvijah kascid dasi-patir ajamilah namna nasta-sadacaro dasyah samsarga-dusitah

kanya-kubje
in the city of Kanyakubja (Kanauj, a town near Kanpur)
dvijah
brahmana
kascit
some
dasi-patih
the husband of a low-class woman or prostitute
ajamilah
Ajamila
namna
by name
nasta-sat-acarah
who lost all brahminical qualities
dasyah
of the prostitute or maidservant
samsarga-dusitah
contaminated by the association.

In the city known as Kanyakubja there was a brahmana named Ajamila who married a prostitute maidservant and lost all his brahminical qualities because of the association of that low-class woman.