PRIME Minister Boris Johnson’s mother has died aged 79.

Charlotte Johnson Wahl, a painter, died ‘suddenly and peacefully’ at St Mary’s Hospital, Paddington, on Monday, according to a death notice in The Times.

Mrs Johnson Wahl studied English at the University of Oxford, interrupting her education to travel to America with Stanley Johnson, who she married in 1963.

She then returned to the university to complete her degree as the first married female undergraduate at her college, Lady Margaret Hall.

Aged 40, she was diagnosed with Parkinson’s disease, but never allowed it to prevent her painting, steadying herself with a walking frame while she worked.

As an artist, she made her name as a portrait painter and married the American professor Nicholas Wahl in 1988, moving to New York where she began painting cityscapes.

Mrs Johnson Wahl returned to London following her second husband’s death in 1996.