His uncle , Richard Arkwright , was Member of Parliament ( MP ) for Leominster .
Born in London , he was the great - great grandson of the cotton - spinning industrialist Sir Richard Arkwright and the son of John Hungerford Arkwright .
grandson 's uncle Sir   Arkwright , was Member of Parliament ( MP ) for Leominster .
Born in London , he was the great - great grandson of the cotton - spinning industrialist Sir Richard Arkwright and the son of John Hungerford Arkwright .