James Abbott McNeill Whistler is best known for his painting titled "Arrangement in Grey and Black No.1". Who was this a painting of?

Painted by James McNeill Whistler in 1871, "Arrangement in Grey and Black No.1" is best known as "Whistler's Mother" as it's a depiction of his mother, Anna McNeill Whistler.

Asked by Rachel Bortles · Last updated 5 years ago · 4.7K views · SOURCE