The nursing home says it is "utterly shocked" by the incident as police confirm the accused is related to the victim.
A man has been charged with murdering one of his relatives at a nursing home in Essex.
June Knight, 79, died on Monday at Langley Lodge Nursing Home in Westcliff-on-Sea, Essex.
Robert Knight, 52, will appear at Southend Magistrates' Court on Wednesday charged with her murder.
Police said the man charged, from Leigh-on-Sea, is related to Ms Knight but would not give any more details.
A post-mortem examination will take place this week.
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The nursing home said it was "utterly shocked by what happened".
Essex Police said officers are not looking for anyone else in connection with the death.