Kate Middleton snuck in via a secret alleyway to a local pub in London for her children's schools meet and greet drinks.
The pub, which has a royal history, has a hidden doorway that was previously installed for Prince Harry.
The alleyway that led to the door is private and allowed Kate to sneak in without as much as a phone camera seeing her.
Kate's daughter Princess Charlotte started at Thomas's Battersea School in September, where her older brother Prince George joined in 2017.