Not sure which daughter is on the photo, but his oldest daughter, Mariya is married to a Dutchman, Jorrit Faassen.
This was not widely known, until Mr Faassen's car was forced to stop in Moscow, after which several men beat up both car and driver. These men worked for banker Matvey Oerin.
Bad mistake, as Jorrit was able to write down their number plates...
Mr Oerin now serves a very long jail term and his business empire was demolished.
I remember reading something about that.
But I think that's still at rumor-stage.
""If you try to work out how a Dutch national can end up being such an significant figure, then only one logical answer comes to mind: he's the son-in-law of a someone very important.''
This is what journalist Yulia Latynina said in December 2010 on the Echo Moskvy radio station."
"Her colleague at Forbes, Olga Romanova, adds: "Very well-informed gossips have written that the Dutch citizen Jorrit Joost Faassen is the fortunate son-in-law of Prime Minister V.V. Putin - married to his eldest daughter''. This piece of gossip has been neither confirmed nor denied. It seems that only the Kremlin, or Jorrit Faassen himself, are in a position to put an end to all the speculation."
Something that bothers me in that story is that would a husband of Putin's daughter hover the streets without any security measures?
Could of course be they were confident enough that their identities or location were not known by anybody... who knows.