Claude Monet

He only went to Venice once, apparently, and finished most of the paintings from that trip back home afterwards, working from memory.

They say he worked on a whole stack of canvases at once from a hospital terrace across the river, swapping to a fresh one every time the light shifted, then spent years finishing the lot back home in France. The fog wasn't getting in the way of what he came for — from what I've read it was the reason he came.

Apparently he painted the same pond in his own garden something like two hundred times. By this point his eyesight was going — cataracts — and people still argue about how much that's doing to the colours.