Share Tweet Pin Email By Katherine Tinsley 4:16pm PDT, Aug 21, 2025 _ Grace Kelly was so protective of her daughter, Princess Caroline of Monaco, that she once tried to sabotage Caroline's relationship with her first husband, Philippe Junot.Keep reading for the details...MORE: Follow Wonderwall on MSN for more top news _ Princess Caroline was just 20 when she started seeing Philippe Junot, a wealthy and well-connected Parisian banker who was 36 at the time.