Die 44-Jährige schreibt auf Instagram, sie habe die „Drei-Gipfel-Herausforderung“ zur Unterstützung der Royal Marsden Cancer Charity angenommen, die Krebspatienten am Royal Marsden Hospital unterstützt. Hier wurde Kate selbst behandelt.

The Princess of Wales, Kate Middleton, took on the Three Peaks challenge, which saw her climb Ben Nevis, Snowdon and Scafell Pike in 24 hours - and it was for a great cause

Catherine, 44, started the endurance event on Saturday night and finished it 24 hours later cheered on by her family including her husband and three children.

The princess tackled the challenge solo with support from Mountain Rescue teams along the route