A 79-year-old cancer sufferer killed himself after becoming depressed, an inquest heard.
Terminally-ill Joseph Allen was found hanged by his daughter Deborah Lock.
She had called at his house in Queen Anne's Drive, Bedhampton, after he had failed to return her calls.
Mr Allen, whose dementia-suffering wife had just been placed in a care home, had been showing signs of depression days before his death.
An inquest at Portsmouth Guildhall heard he had been prescribed anti-depressants after developing cancer in his bowels, liver and lungs.
After an assessment from a Macmillan nurse, he was considered not to be a suicide risk.
His daughter Mrs Lock told the inquest: 'It came as a complete shock.'
Police were called to Mr Allen's house after he was found dead.
Despite the lack of a suicide note, any involvement from a third party was ruled out.
PC Michael Cutler, an area car driver in Havant, said: 'Nothing seemed out of place.'
Recording his verdict, Portsmouth and South East Coroner David Horsley, said: 'From the evidence, I don't think there is any doubt in my mind he has intended to take his own life.
'While it must have been a shock, I think we can all understand why he did what he did.
'He took his own life while suffering from depression.'