Of all the chief executives at a FTSE 100 company, the one I am coming to know best is Jean-Sébastien Jacques, the 46-year-old Frenchman appointed to run the Rio Tinto mining group last year.
Mr Jacques has lived in London for more than a decade and was “insanely happy” when he became a British citizen in 2013. He loves rugby. He travels constantly. His wife nicks his socks and he lives around the corner from a French bakery selling bread as good as any you can get in Paris.
I learnt all this from French Yummy Mummy, a blog by a gabby London-based Parisian engineer named Muriel Demarcus who is, I recently discovered, also Mr Jacques’ wife.