But, according to that article, Café Dahlia was a well-known place for art lovers, wasn´t it? And the "conflict" came when someone changed it or rebuilt it... ?
Sorry, but my French is not so good...
By the way, if you check my #87 post, you'll see that the building just close to the Cafe has been "rebuild" too...
I'd say it was a place known by Matisse lovers. If it was "well-known" amongst art lovers, I can't tell. There seems to be a list of buildings which are protected, but this one wasn't on it. The owner, obviously completely unaware of its history, had it renovated and modernized, and that was it.
Found this old postcard from 1910 (and that was even before the Matisse painting). Amazing how little it has changed...