An inquest has opened into the death of an elderly woman which prompted a police investigation.
Lorna Plowright, 73, had lived in Oakdene, in the village of Wicken Green, near Fakenham.
A carer had visited Mrs Plowright and her husband, who suffered from dementia, regularly.
Assistant coroner Johanna Thompson said that when the carer visited on September 12, she found Mrs Plowright unresponsive, and police said the incident was not believed to be suspicious.
The preliminary medical cause of death was given as asphyxia.
A police investigation had been launched following the death, with the incident treated as unexplained but not suspicious.
Neighbours said Mrs Plowright had been seen at a local indoor bowls club days before her death.
Det Insp John Allison, speaking at the time, said officers were supporting family members 'during this difficult time'.
The inquest was adjourned until November 24 for a full hearing and reports have been requested from police and mental health services.
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