Princess Charlotte was all about crossing off royal milestones during her trip to Switzerland with Prince William on Sunday, July 27. Along with making her first solo trip abroad with her dad, the 10-year-old also signed her full name for the first time in a royal Instagram post.

Princess Charlotte met with members of the Spanish Royal Family, including Princess Leonor and her younger sister Infanta Sofia. Princess Leonor, who is the heir to the Spanish throne, posed for pictures alongside Princess Charlotte and Prince William in Switzerland.

Princess Charlotte had a big weekend—and hit a couple of milestones while she was at it. In addition to turning the milestone age of 10 earlier this year—on May 2, to be speci