This man was probably a Chelsea pensioner.

CERTIFIED COPY OF AN ENTRY OF DEATH

Registration district St Luke Chelsea 1848 death
in the sub-district of South Chelsea in the County of Middlesex.
No When and where died Name and surname Sex Age Occupation Cause of death Signature, description and residence of informant When registered Signature of registrar
251 Twenty third January 1848 Royal Hospital William Brind male 68 years Soldier Purpura about 12 months Diarrhoea 5 days

p.m. certified
x the mark of Charles Brown present at death Royal Hospital Chelsea Twenty seventh January 1848 Thos. Long Registrar

Purpura: Any of several blood diseases causing subcutaneous bleeding
Possible link to birth & parents or perhaps this link
1841 census