Buzz·Posted on Feb 22, 2013Twitter Well-Wisher Shocked By Royal Thank-You Letter From William And KateThe Duke and Duchess of Cambridge have been sending letters of thanks to royal baby well-wishers.by Ellie HallBuzzFeed News ReporterLinkFacebookPinterestTwitterMail @MissKaraLouise sent the royal couple a letter of congratulations when the Duchess announced her pregnancy in December. On Thursday, she was surprised to see that she had received a letter from Clarence House.