Robin WilliamsRobin William’s wife has filed for divorce at San Francisco Superior Court.

Marsha Garces Williams married the comic actor in 1989 after they met while she was working as a nanny for his son Zachary from Robin’s previous marriage to Valerie Valardi. Robin and Marsha have two children together - 18 year old Zelda and 16 year old Cody.

According to the legal documents, Marsha, who produced Robin’s films Mrs Doubtfire and Patch Adams, wants legal joint custody of Cody - the boy will live with her and Robin will have visitation - and an undisclosed amount of spousal support. Marsha has also requested that Robin be made responsible for her legal fees during the divorce proceedings and that all community property be divided between them once their assets have been tallied.

Robin’s spokesperson has confirmed the split but refused to go into any further detail regarding the cause of the separation. The couple’s marriage was rumoured to have been in trouble before Robin checked himself into rehab in 2006 for help with his alcoholism.