Popsugar Celebrity The Royals Prince William and Kate Middleton at Mental Health Summit Will and Kate Return For Their First Joint Royal Outing Together Since Prince Louis's Birth 12 October 2018 by Tori Crowther First Published: 9 October 2018 View On One Page Photo 18 of 28 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 18 Previous Next Start Slideshow The RoyalsThe British RoyalsPrince WilliamKate Middleton