i would have thought that kate and madeleine had met privately, having so much in common being royal mums of kids of the same age, living in the same city and probably frequenting similar circles. but clearly not seeing this comment of madeleine.
also note the ages: Princess Leonore, 2½, and Prince George, 3. Prince Nicolas, 15 months and Princess Charlotte, 16 months. i can see the start of a great friendship between these 4 (and maybe i am getting ahead of myself but who knows, maybe we have the next 'royal to royal' wedding in the making!)