of unsound mind

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This provides that any person may apply (the applicant) to the Provincial Division of the High Court (by Notice of Motion) for an order declaring another person (the patient) 'to be of unsound mind and as such incapable of managing his affairs'.
Paul is reduced to squatting in Ned's old flat and attempts to bribe Charlotte into declaring him of unsound mind.
Attempts are made to disparage me so badly that I am made out to be of unsound mind.
In the complaint, Owens alleged that King was of unsound mind during the entire term of her residency at NHC.
It was only when the caller related this to the imminent Second Coming and England's certain victory in the World Cup that the presenter realised he was possibly dealing with someone of unsound mind and cut the call short.
He had hung himself and the jury returned a verdict of suicide while of unsound mind.
In California, an annulment may be granted when either party in the marriage is under 18, of unsound mind, bound to a previous marriage or if the consent to marry was obtained by fraud or force.
She was released briefly and recommitted again in April 1923, medically diagnosed by the state's psychiatrists as being of unsound mind.
Nine days later, Rodman announced he was seeking an annulment, claiming he was of unsound mind when he recited his vows.