The family of Robin Williams is locked in a disagreement over his estate almost six months after the Oscar-winning actor committed suicide at the age of 63.

Court documents from December and January reveal disputes over money, property and personal belongings between Williams’ widow and third wife, Susan Schneider Williams, and his three children from two previous marriages, the New York Times reports.

Documents from Zak (31), Zelda (25) and Cody (23) say they are “heartbroken” that Susan Schneider Williams, who married Robin Williams in 2011, has “acted against his wishes by challenging the plans he so carefully made for his estate.” Their claims are in response to papers Williams’ lawyers filed in December outlining the parts of the estate she claims she is entitled to.

While the actor’s estate set up a separate trust for Susan Schneider Williams that includes among other things their Tiburon, Calif., home and “all costs related to the residence,” the children believe her request for “all expenses associated with daily upkeep as well as unexpected renovations and improvements” is pushing for more funds and a sign of “greed.” There is also disagreement over which of the actor’s personal memorabilia belong to which trust.

“Mr. Williams wanted his wife to be able to stay in her home and not be disrupted in her life with her children,” Jim Wagstaffe, a lawyer for Susan Schneider Williams, told the Times. “Compared to what the Williams children were set to receive from their father, this is a bucket of water in a lake.”

[NYT]

Read next: Quiz: Can You Guess Which Celebrity is Worth More?

Get The Brief. Sign up to receive the top stories you need to know right now. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Listen to the most important stories of the day.

Write to Nolan Feeney at nolan.feeney@time.com.