Grammer married the former Playboy model Donatacci in 1997 in Malibu, California after they met on a blind date a year before. Donatacci is Grammer's third wife.
They now have a daughter, Mason Olivia and a son, Jude Gordon together, both of whom were born by a surrogate mother. Donatacci was also the stepmother of Grammer's two children Spencer (with Doreen Anderman) and Greer (with Barrie Buckner).
Donatacci appeared in and episode of Frasier in 1997, called Halloween, in the same year they got married.
While they were married, their homes in Malibu, California, Maui, Long Island, Colorado, Bel Air, Los Angeles and New York were featured in a number of different publications including InStyle and Architectural Digest.
On the 1st July 2012, Donatacci filed for divorce citing 'irreconcilable differences' and it was finalised on 10th February 2011.
Source: Wikipedia and IMDB.