The legal battle between the children and widow of Robin Williams over his estate is expected to head to court Monday as the bitter argument over personal items left behind by the late comedian and actor continues. Attorneys for both sides are scheduled to appear in probate court in San Francisco.

Williams' third wife, Susan Schneider, is fighting with his three children from previous previous marriages, Zachary, Zelda and Cody, over items from the home that she shared with Williams. She filed a lawsuit in December alleging that some of his belongings, including clothing and photographs, had been wrongfully taken from that home. But the children have argued that Williams left those items to them, as part of a trust agreement, and said that Schneider adds "insult to a terrible injury" by trying to claim them for herself.

A separate trust for Schneider reportedly included the home that she and her late husband shared, and her lawsuit claimed that the trust ought to also include "all expenses associated with daily upkeep as well as unexpected renovations and improvements." She requested that some of the items left in the home, including jewelry, not be given to Williams' children.

Zak Williams, 31, was from the actor's first marriage; Zelda, 25, and Cody, 23, were from his second. Their petition filed to the court in January in response to the lawsuit said in part, "These collections were carefully amassed by Mr. Williams over his lifetime and were precious to him. As the Williams children grew, so did their father's collections and they shared in their father's excitement as additions were made to his collection."

Robin Williams passed away Aug. 11 at the age of 63. His death was ruled a suicide, and Schneider reported that he had been suffering from depression and anxiety and was struggling with early-stage Parkinson's disease.