King Charles has marked his first Mother's Day without the Queen by sharing a poignant childhood photo with his 'beloved Mama'.

The monarch, 74, and Queen Consort Camilla, 75, showed their support for others who have lost parents on their Instagram account this morning.

The first image in their joint post showed King Charles as a toddler standing on his mother's lap as they posed for a photo.

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In the poignant post, Queen Consort Camilla also shared a heartwarming photo with her late mother Rosalind Shand, who sadly passed away in 1994.

The image - which is from Camilla's private family collection - shows the royal dressed in a bright red jacket and gold necklace as she beams beside her late mother.

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Charles and Camilla captioned the post: 'To all mothers everywhere, and to those who may be missing their mums today, we are thinking of you and wishing you a special Mother's Day.'