Beyoncé and Jay-Z are one of the world's most famous power couples. And they now have an equally famous family, with daughter Blue Ivy, 13, and seven-year-old twins, Rumi and Sir. But Beyoncé's mother,

Beyonce’s mom, Tina Knowles, recalls the start of her daughter’s relationship with Jay-Z in her memoir, 'Matriarch'

In an interview with People published Tuesday (April 22) — the same day the businesswoman’s new memoir, Matriarch, hit shelves — Knowles opened up about how widespread rumors Bey faked her pregnancy with firstborn Blue Ivy in 2011 marred the experience for the entire family. “Babies and children are so precious and so sacred,” the designer began.