Caitlyn Jenner has become a grandparent for the sixth time and announced the news on Instagram Sunday evening.
The 69-year-old star shared an adorable photo of herself with little William Behr - the son of Caitlyn's oldest son Burt and his partner Valerie Pitalo - on her Instagram account on Sunday, February 17, a week after the tot was born on February 9.
Caitlyn captioned the post: "Welcome to the world William Behr Jenner. Congratulations @burtonjenner and @valeriepitalo !! Love you guys"
It has been suggested the baby took his first name in honour of Caitlyn, who was born William Bruce Jenner.