Sir Carter (born June 13, 2017) is Beyoncé and Jay-Z's son, Rumi's twin brother and Blue Ivy's younger brother.
Biography[]
On February 1, 2017, Beyoncé posted on Instagram and revealed that she was expecting twins. Sir and his sister Rumi were born on June 13, 2017. He is of Louisiana Creole-American and African-American descent on her mother's side and African-American on her father's side.
Sir is the younger twin, and was named out of a sense of royalty.
According to his maternal grandmother Tina Knowles, Sir is quiet but very smart and good with numbers.