Are you talking about Liza Minnelli, the late Judy Garland's daughter?
If so, according to reliable sources, she has not been married to anyone
By the name of Rex Kramer.
Marriages
Minnelli has been married (and divorced) four times. Her first marriage was to Peter Allen (full name Peter Allen Woolnough) on March 3, 1967. Australian-born Allen was Judy Garland's protégé in the mid-1960s.[9] The couple divorced on July 24, 1974. Later that year, she married Jack Haley Jr. a producer and director, on September 15, 1974. His father, Jack Haley, was Garland's co-star in The Wizard of Oz. They divorced in 1979.
Minelli was married to Mark Gero, a sculptor and stage manager, from December 4, 1979 until 1992. She was married to David Gest, a concert promoter, from March 16, 2002, until July 25, 2003.
Minnelli has no children; one pregnancy left her with a hiatal hernia as a result of the medical steps taken to try to save the baby.[2]
Source of above:
Liza Minnelli - Wikipedia, the free encyclopedia
Another source:
Liza Minnelli