Over the years, Prince William and Kate Middleton have made some precious family appearances with Prince George and Princess Charlotte. Not only did they all celebrate the queen's 90th birthday in June, but they recently caused a stir with their visit to Canada. While Kate has raked in some pretty notable mom moments, William has also proven time and time again that he's quite the doting dad. Even though he is constantly being compared to his son, we can't help but melt over his father-daughter moments with Charlotte.