Many of Tina Knowles’ fondest childhood memories are of sitting under a pecan tree as her mother recited the history of their family, stretching back generations. Now, the mother of Beyoncé and Solange has given her own story to the world with “Matriarch: A Memoir,

Beyoncé’s mother, businesswoman Tina Knowles, discussed her breast cancer diagnosis during an interview with “CBS Mornings” co-host Gayle King posted on Monday. Knowles, 71, said her physicians found two tumors in her left breast - one benign and the other with Stage 1 cancer - during a mammogram appointment last year.