There is a Francis G Hanrott age 85 (1756) living in St Marylebone, Middlesex, 1841 Census
Independant income + 2 servants.
Death Reg
HANROTT, FRANCIS GASHRY age 95
GRO Reference: 1847 J Quarter in THE ISLINGTON DISTRICT Volume 03 Page 161
Son;
FRANCIS GASHRY Hanrott
Christening 16 July 1790 St Mildred Poultry with St Mary Colechurch, London
Birth 14 July 1790
Parents Francis Gastry and Mary
Sibling MARY ANN christened 8 Mar 1789
Wife was Mary GIRLING married 14 May 1788 Suffolk
Francis Jnr married Elizabeth Allen 1843, m/c on Ancestry.
Occp Surgeon