The coroner for Wiltshire is appealing for anyone with information regarding David John Smith to come forward.
Mr David John Smith, 64, lived at Flat 32 Gardner House, Trinity Close, Swindon.
He has been described as a recluse and was found deceased in his flat on April 9 by a cleaner. His death is not being treated as suspicious.
It is thought that he may have married in the past but was long since divorced but may have a niece living in the Swindon area.
Anyone with information regarding Mr Smith is asked to contact Coroners Officer, Mo Davey on 01793 507841.