The head of the National Trust, Dame Helen Ghosh, 51, is leaving the UK’s biggest charity after a controversial five year tenure to become master of Balliol College, Oxford.

Under Ghosh the popular annual Easter Egg Trail became the very much more commercial Cadbury Egg Hunt, with very strong Cadbury branding in the posters and printed material. It is not known whether any extra money was paid by Cadbury for the very obvious, and naff, branding which many feel took the Trust downmarket.