Tina Knowles reveals in her memoir how Beyoncé's relationship with Jay-Z started as a friendship with tough choices.

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,

The mother of Beyoncé and Solange, Tina Knowles has released her book, “Matriarch: A Memoir.” NEW YORK (AP) — Many of Tina Knowles’ fondest childhood memories are of sitting under a pecan tree as her mother recited the history of their family,