<p>Charlotte was at it again with the royal rewear when she <a href="https://people.com/royals/princess-charlotte-wears-prince-georges-sweater/" rel="nofollow noopener" target="_blank" data-ylk="slk:sported a blue cardigan" class="link ">sported a blue cardigan</a> that her big brother wore to meet her at the hospital in 2015.</p>