Williams has been married twice, her first marriage was to public relations consultant Ramon Hervey II from 1987- 1997.
Hervey later became Williams's manager after having two daughters together, Melanie, born on June 30th 1987, the year they were married and Jillian, born on 19th June 1989. They also had a son together, Devin, born on 14th April 1993.
Their daughter Gillian released a single in 2012, after following in her mother's footsteps of having a talent for singing.
Williams went on to marry NBA basketball player Rick Fox from 1999 to 2005 and they have one child together, Sasha, born on 1 st May 2000. However their relationship also ended in divorce after pictures were released in The National Enquirer of Fox being affectionate with another woman.
A representative of the couple reportedly said that divorce had been imminent for over a year; however they reappeared together on screen on two episodes of Ugly Betty when Fox played the part of a bodyguard.
Source: Wikipedia and IMDB.