A 69-year-old man was discovered dead in his St Paul's home after not being seen by a neighbour for three months.
The death of Winston Kerr is not being treated as suspicious but detectives are struggling to trace his family.
Officers found Mr Kerr on March 30 and an inquest is set to take place in the coming months.
An Avon and Somerset Constabulary spokesperson said: "Police are appealing for help to trace the next of kin of Winston Kerr, 69, who was sadly found dead in his home in Norrisville Road, St Paul's on Monday 30 March.
"A neighbour called police having not seen Mr Kerr for three months.
"Officers have made a number of enquiries to trace his next of kin with no success.
"An inquest will be held in due course but the death is not being treated as suspicious.
"If you have any information which could help to trace Mr Kerr's family or friends please get in touch here, quoting reference 5220070819. "
