Celestine Ann Knowles (née Beyonce ; born January 4, 1954) is an American businesswoman and fashion designer known for her House of Deréon and Miss Tina by Tina Knowles fashion brands. She is the mother of singers Beyoncé Knowles and Solange Knowles , and, until 2011, was married to their father Mathew Knowles , the manager of Destiny's Child .
