Tensions within Sir Edmund Hillary's family appear to have come to a head with the resignations of his widow and five others from a charity the legendary mountaineer formed.
Lady June Hillary had been a board member of the Himalayan Trust since it was established in 1966.
But she told Britain's Guardian newspaper that she had reached her decision to step down during a celebration marking the 50th anniversary of Khumjung School in Nepal in May.
The school was Sir Ed's first project to help the Sherpas.
"Things had changed," she said. "I had done enough."