help finding a painting

[Renata]

Hi, I've seen a painting and I can't take it out of my hean neither remember
where I saw it, I only know it was in a museum or a museum homepage.

Anyway, it's a painting of a dog, i believe it was a caramel Afghan Harrier,
lying down besides the tomb of his owner. The tomb was only a cemented
square in the floor and there was a beautiful view of the sky. The painting
had the title of loyalty, or something like that to represent the dog
standing there by his dead owner. If anyone know which painting is this one
I would appreciate it.

Afghan Harrier