Grandparents Tina Knowles Lawson and Mathew Knowles shared their joy on social media overnight as well. “So Happy my baby shared a photo of her babies with the world 

proud grandma hello Sir Carter and Rumi Carter

Boy and girl what a blessing
,” Knowles Lawson wrote. Added Knowles, “Beautiful! #ProudDad #ProudGrandDad #Beyonce”