Peter Allen (1967-1974)
Minnelli's mother, actress Judy Garland, actually discovered songwriter Peter Allen and introduced him to her daughter. Allen and Minnelli married in 1967 but eventually separated in 1970 — early in their marriage, Allen supposedly started having affairs with other men. Allen was later actually rumoured to be the lover of Garland's fourth husband, Mark Herron. Allen died in 1992.