Glen Campbell's widow, Kim Campbell, has filed a claim seeking more than half a million dollars in reimbursement from the late singer's estate to cover his medical costs.

According to the Tennessean, Campbell has filed a claim for $506,380 in Davidson Probate Court in Nashville. Her filing claims that amount covered costs associated with his care while he was battling Alzheimer's disease, which included legal fees and building a security fence. The report says she has also filed a claim for $14,246 to recover an insurance payment that she says was paid to the estate in error.

Campbell's claim says that insurance payment was to cover the cost of repairing water damage caused by defective plumbing at the family's property in Agoura Hills, Calif., and the payment should have been made to a family trust that owns that property. That property is currently for sale for just under a million dollars.

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A separate family trust owns the family's Nashville property, where they lived after Campbell was placed in a full-time care facility in the Nashville area. That property includes two acres and an 8,586-square-foot home, for which they paid $1.8 million. Kimberly Campbell is listed as the trustee of both trusts.

Glen Campbell died on Aug. 8, 2017, after battling Alzheimer's since 2011. His estimated $50 million estate has become the subject of a legal battle; Campbell's 13-page will, dated Sept. 1, 2006, excludes Campbell's daughter Kelli and sons William Travis and Wesley Kane from benefitting directly from his estate. They are the children from his marriage to his second wife, Billie Jean Nunley, which ended in divorce in 1976. Campbell was married four times and fathered eight children.

Those three children have filed a legal challenge to Campbell's will, and Campbell's longtime publicist, Sanford Brokaw, received a subpoena to testify to "provide proof of the decedent's capacity since 2002."

Campbell's oldest children, Debby and Travis, previously won a legal victory over a claim that Kim Campbell was denying them the right to visit their father during his illness. In May of 2016, Tennessee Governor Bill Haslam signed a bill called the Campbell / Falk Act into law. The law allows family members and close friends of a person with Alzheimer’s disease, dementia or other disabilities to visit a loved one in person, or maintain contact with them by phone, email or mail, despite the stated wishes of a legally appointed conservator.