Watch this hilarious throwback to 2017: The then Duchess of Cambridge playfully pelts Prince William with water balloons during a Buckingham Palace garden party for children who lost a parent while serving in the Armed Forces. Follow us for more royal news, history, and highlights: ♛ Subscribe to our YouTube channel (tap the bell icon and stay up to date with all the latest Royal videos!) - https://bit.ly/3jNBYZ7 ♛ Find us on TikTok https://www.tiktok.com/@royalfamilychannel ♛ Follow us on