In reading de Kooning: An American Master, it’s pretty clear that there’s a dispute over how much control Willem de Kooning had over his late works, when he was suffering from dementia.
At different points in time . . .
Someone else chose and laid the colors out for de Kooning.
Someone else drew the initial drawing on the canvas.
Someone else mixed the colors.
Someone else decided when a painting was completed or went to the gallery.
Willem de Kooning, Gotham News, 1955.
Oil on canvas, 69 x 79".
Albright-Knox Art Gallery, Gift of Seymour H. Knox, 1955
This begs the question:
When is a master’s work not his or her own?