Robert Kraft has a new lady in his life ... someone he's been holding hands with at multiple major public events -- but her identity is a mystery!!!
People first noticed Kraft's new lady at the French Open in Paris back on June 9 -- when the New England Patriots owner showed up to watch some tennis from the VIP boxes with a female friend on his arm. You can see the two holding hands.
Fans -- and even major media outlets -- mistakenly identified the woman as Ricki Noel Lander, Kraft's ex-girlfriend .