Brian Wilson's family have confirmed they are planning to place him under a new conservatorship.

It was reported on Thursday night that the Beach Boys co-founder has dementia and his family are seeking to appoint new conservators following the death of his wife Melinda in January.

Confirming their plans, the family wrote on Wilson's Instagram page, "Following the passing of Brian's beloved wife Melinda, after careful consideration and consultation among Brian, his seven children, (housekeeper) Gloria Ramos and Brian's doctors (and consistent with family processes put in place by Brian and Melinda), we are confirming that longtime Wilson family representatives LeeAnn Hard and Jean Sievers will serve as Brian's co-conservators of the person."

In the court documents, obtained by The Blast, it was claimed the 81-year-old "does not have the capacity to give informed consent to the administration of medications appropriate to the care and treatment of major neurocognitive disorders (including dementia)".

The God Only Knows hitmaker is also allegedly unable to provide for his personal needs "for physical health, food, clothing, or shelter".

In the statement, the family continued, "This decision was made to ensure that there will be no extreme changes to the household and Brian and the children living at home will be taken care of and remain in the home where they are cared for by Gloria Ramos and the wonderful team at the house who have been in place for many years helping take care of the family."

They added, "Brian will be able to enjoy all of his family and friends and continue to work on current projects as well as participate in any activities he chooses."

A hearing about the proposed conservatorship arrangement will take place on 26 April.

Wilson, who suffers from schizoaffective disorder, mild manic depression and auditory hallucinations, had been in a conservatorship arrangement with Melinda ever since they married in 1995. Before that, he was given a court-appointed conservator named Jerome Billet in 1992.

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