Daphne Todd OBE (born March 27, 1947) is an English artist and was the first female President of the Royal Society of Portrait Painters.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Daphne_Todd

Baron Sainsbury of Preston Candover by Daphne Todd
2001 / Oil on birch panel / 60 1/4″x42″ / National Portrait Gallery, London

Daphne Todd on Art UK: https://www.artuk.org/discover/artists/todd-daphne-b-1947

Further reading:
https://therp.co.uk/portfolio/daphne-todd-obe-pprp-neac/
https://www.painters-online.co.uk/tips-techniques/interview/articles/being-a-judge-on-the-big-painting-challenge/
https://www.theguardian.com/artanddesign/2010/jun/22/last-portrait-of-mother-portrait