I want to to identify the French general on this portrait at the french embassy in London.

Pic: https://cf.geekdo-images.com/images/pic2918769.jpg or here: https://pmchollywoodlife.files.wordpress.com/2015/11/kate-middleton-prince-william-pay-respect-victims-paris-attacks-lead.jpg?w=600

or search for "Prince William French Embassy"

The picture was taken shortly after the terror attacks in paris, when Prince William condoled at the embassy. Next to this picture was a portrait of Paul Cambon, French Ambassador during WW1. So i assume this general was also ambassador, envoy or some kind of diplomat in the UK.

Checking some french marshals and ambassadors of this time, didn't give me a good result

Also checked portrait lists of Rigaud without success.

If i had to guess, i would say, he's maybe duc de tallard, because of his special relationship to GB or Vauban, because of the defensive symbolism.

So please help me to identify this french general?

thanks s.

ps. hope i didn't violate any subreddit rules, but i'm new to reddit and didn't know where to post it else.