Kate Middleton received online backlash for not being able to fry an egg.
Her brother James Middleton extended support to her.
Prince William and Kate posted behind the scenes photos with the Wales and England rugby teams.
The pictures were posted on both Instagram and Twitter.
The caption was written in both English and Welsh.
James Middleton was the first to show support by liking the Instagram post.
The photos showed a friendly rivalry between the Wales and England teams.
Kate Middleton's brother has been a consistent supporter of her.
The Princess of Wales has not responded to the online backlash.