Glen Campbell's longtime publicist, Sanford Brokaw, who announced Campbell's death from Alzheimer's Disease last year, has been subpoenaed to testify regarding the late singer's competence when he signed a what turns out to be a disputed will.

According to the Tennessean, the subpoena comes as a result of three of Campbell’s children challenging his 2006 will, which leaves them out of any inheritance. Campbell fathered eight children over four marriages; his children by his second wife are the ones cut out of the estate who are seeking justice.

The will was filed by Campbell's fourth wife, Kimberly. Campbell's estate is estimated at $50 million.

Records in Davidson Probate Court show a subpoena has been issued for Sanford Brokaw to appear for testimony in Nashville on Feb. 20. The subpoena calls on Brokaw to "provide proof of the decedent's capacity since 2002."

According to the Tennessean, Brokaw declined to comment.

Campbell died on Aug. 8, 2017, after battling Alzheimer's since 2011. His eldest daughter Debby and son Travis previously won a legal victory after claiming 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 into law called the Campbell / Falk Act. 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.

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