Proper noun
Gautreau (plural Gautreaus)
A surname.
John Singer Sargent 's Madame Pierre Gautreau (Madam X) (1884), caused a controversy over the reddish pink used to color the woman's ear lobe, considered far too suggestive and supposedly ruining the high-society model's reputation. Source: Internet
The strong point in Strapless is when Davis sticks to such facts: how Gautreau lived, why Sargent would want to paint her, what happened at the Salon when "Madame X" debuted. Source: Internet