Boris Johnson's daughter Lara pays tribute to late grandmother Charlotte Johnson Wahl
Lara Johnson-Wheeler, 28, said her grandmother was 'unflinchingly honest' as she wrote about her work as a painter in a sweet piece for Tatler .
Lara Johnson-Wheeler, 28, said her grandmother was 'unflinchingly honest' as she wrote about her work as a painter in a sweet piece for Tatler .