LIZA Minnelli was married four times over the course of her life. Her fourth marriage ended in 2007, lasting just five years before the pair called it quits. Liza Minnelli’s marriage to Peter Allen lasted from 1967 until 1974. On the night of their wedding, Minnelli found Allen being intimate with a man. Allen later began seeing Mark Herron, who was married to Minnelli’s mother Judy...