Kim Richards is a new grandma!
A source tells ET that Brooke Wiederhorn, daughter of the former Real Housewives of Beverly Hills star, gave birth to a baby boy on Wednesday.
The adorable new addition to the family is the first child for Brooke and her husband, Thayer Wiederhorn, and is Richards' first grandchild.
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A week before Brooke delivered her baby, she took to Instagram to celebrate her mom's 52nd birthday, where she gushed over how wonderful the reality star is going to be as a grandmother.
"Happy birthday to the most amazing mom in the world! I know you will be an even more amazing grandma!!" Brooke, 30, captioned a sweet mother-daughter snapshot. "I love you!"
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Brooke, whose father, Monty Brinson, died after a long battle with cancer back in January, announced she were expecting back in March.
"Happy Easter," she wrote alongside a photo of tiny baby clothes inside of an Easter basket. "Can't wait to meet our baby BOY!"
Brooke snapped a number of photos of her growing baby bump over the course of her pregnancy, which she shared to Instagram to document her journey.
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Two weeks ago, she bared her belly in this heartwarming black-and-white photo, which she captioned, "Mommy & Daddy Can't Wait To Meet You!"
Back in August, Richards took to Instagram to share a photo of her kissing her daughter's stomach, and marveled in the caption, "It's amazing how much we love him already."
Congrats to the happy couple and the brand new grandma!
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