The Royal Family shared a series of personal snaps and messages as they all marked Mother's Day - but there was silence from one couple.
Prince Harry and Meghan Markle did not release any messages or pictures for the special day - and it could be down to a key difference between the UK and the US, where the Sussexes now live.
In the UK, Mother's Day is always celebrated in March during Lent and is traditionally known as Mothering Sunday.
However, in the US, it is always marked on the second Sunday in May - meaning Americans weren't honouring their mums yesterday.
This suggests that Harry and Meghan stayed quiet as they will be celebrating the day on Sunday, May 14 - like others in the United States.
Meghan only celebrated one UK Mother's Day in 2020 - just weeks before she and Harry quit as senior royals and moved to America.
They shared a simple message on their former Sussex Royal Instagram account that said: " "Mummy. Mum. Mom. Mama. Granny. Nan. Thank you.
"No matter what you call your mum, this Mother's Day in the UK, we honour the mums all over the world who do so much every single day, and now more than ever."
In contrast, heartwarming new pictures of the Princess of Wales alongside Prince George, Princess Charlotte and Prince Louis were released for Mother's Day.
The first image shows Kate sitting in a tree with her children and is accompanied with the words “Happy Mother's Day from our family to yours” along with a red love heart. Another photograph shows a smiling Kate as she plays with Louis in her arms.
They are all casually dressed and smiling into the camera and the snaps appear to have been taken at the same time as the Christmas card photo they released last year.
Meanwhile, King Charles remembered his mum the late Queen on the first Mother's Day since her death.
A poignant message celebrating all mothers was posted online alongside treasured images which showed Charles as a beaming baby standing on the Queen’s lap.
Another snap showed an adult Queen Camilla smiling as she stands behind her elderly mother Rosalind Shand, who died in 1994 at the age of 72 after a long battle with osteoporosis.
The Twitter post was accompanied by the message: “To all mothers everywhere, and to those who may be missing their mums today, we are thinking of you and wishing you a special #MothersDay."
