Popsugar Celebrity And Entertainment Celebrity Babies Prince William and Kate Middleton Relationship Timeline Prince William and Duchess Kate's Royal Road to Baby #2 15 April, 2018 by Allie Merriam View On One Page Photo 6 of 34 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 March 2008: Joining the Royal Fold With their romance back on, William and Kate become increasingly serious in their relationship. She joins him for a family ski vacation in Switzerland that Spring. Previous Next Start Slideshow Celebrity BabiesPrince GeorgePrince WilliamKate MiddletonThe Royals