James Middleton can be seen helping his sister, the Princess of Wales, down to the base of Mount Snowdon in a heartwarming video filmed by a hiker who also completed the Three Peaks Challenge.

Catherine, 44, recently completed the gruelling endurance event, scaling three of the highest peaks in the UK within 24 hours, to spread her message about life during and after cancer.

While the Princess did the challenge solo, her younger brother sweetly escorted Catherine to the base of the mountain in Wales in a clip filmed by entrepreneur Phillip Tebajjwa.

The video shows a beaming Kate, wearing red shorts, hiking boots, and a grey cap, holding James’s hand as her famous sapphire ring caught the light.

The moment felt especially poignant as royal fans recalled how Catherine attended therapy appointments with James when he was being treated for severe depression that left him contemplating suicide.

Speaking to Mail columnist Bryony Gordon, the youngest Middleton sibling said that while his therapist encouraged him to bring his family to his sessions, he only felt comfortable taking his older sisters, Catherine and Pippa.

James described his sisters’ engagement in his recovery journey as a ‘very moving moment’ – much like the author’s presence alongside Catherine at Mount Snowdon over the weekend, X users said.

‘James has truly always been there for her like a fierce and proud brother,’ one person wrote, while another added it was ‘lovely’ to see the bond between the siblings.