Joy Vogelsang was married to August Coppola, the brother of acclaimed director Francis Ford Coppola, back in 1960. Together, the couple had Nicolas Cage, Christopher Coppola and their brother, Marc. The two would eventually divorce when Cage was 12, as he previously stated in an interview.
Article source: https://www.cinemablend.com/news/2569239/nicolas-cages-mother-former-dancer-joy-vogelsang-is-dead-at-85