And ... she's off! After retreating to her parents' home in Bucklebury following Prince George's birth on July 22, the Duchess of Cambridge made her first public appearance five weeks later, when she and Prince William helped kick off a marathon in their home of Anglesey on Aug. 30. Looking trim as ever, Kate was all smiles and chatted with onlookers while her mother stayed home with the little prince. "He's sleeping well but I know these things change at a minute's notice," Kate told a fellow mother, reports The Daily Mail.