"The Real Housewives of Beverly Hills" star Kim Richards has reportedly become a first-time grandma.

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News outlets reported Thursday that the 52-year-old television personality's eldest child, Brooke Wiederhorn, welcomed a son with husband Thayer Wiederhorn on Sept. 28.

Wiederhorn, the daughter of Richards and her late first husband, Monty Brinson, had married Thayer in Cabo San Lucas, Mexico, in May 2015.

She announced she and her husband were expecting in an Instagram post in March.

"Happy Easter," she captioned a photo of an Easter basket filled with blue toys and baby accessories.

"Can't wait to meet our baby boy!"

Richards is also mom to son Chad and daughter Whitney with second husband Gregg Davis, and to daughter Kimberly with John Jackson.

Wiederhorn had posted a sweet message to her mom on the star's 52nd birthday Sept. 19.

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"Happy birthday to the most amazing mom in the world! I know you will be an even more amazing grandma!! I love you!" she wrote.

Richards and her sister, Kyle Richards, came to fame as child actresses and have since starred on "The Real Housewives of Beverly Hills."

Richards appeared as a series regular in Seasons 1 through 5 and as a guest in Season 6.