Kate Middleton was noticeably absent from Prince Charles's 70th birthday celebrations at Buckingham Palace yesterday, despite making an appearance at Prince Harry and Meghan Markle's wedding on Saturday.
Of course royal fans spotted the mum's absence, but the reason why Kate was not at the celebration alongside Prince Harry and his new wife is mostly likely due to her new little one, Prince Louis.
Despite it being a birthday celebration for her father-in-law - six months before his actual birthday - Kate probably skipped the garden party because she is still on maternity leave.
With all the excitement surrounding Harry and Meghan's wedding it can be easy to forget that Kate gave birth to Prince Louis just 30 days ago!
Kate's last official engagement was in March, where she attended a Commonwealth event for the SportAid charity at the CopperBox arena in the Olympic Park, London.
Although Kate was at the wedding on Saturday, her next appearance is not likely to be before the Trooping Of Colour.
It is thought that Kate will take a longer maternity leave with Prince Louis than she did for Prince George and Princess Charlotte, as she went back to work too soon after their births.
This will give her more time to spend with her children, which she revealed is her favourite thing to do.
Kate wasn't the only person to miss the garden party. Prince William was not at his dad's early birthday celebrations as he was in Manchester to attend a tribute to those who were affected by the terrorist attack that look place at an Ariana Grande concert last year.
However, Prince Harry and Meghan Markle were at the celebration and made their first public appearance as husband and wife.
The couple delayed their honeymoon to attend the garden party and will not jet off until later in the year.
Prince Harry gave a speech in which he spoke very proudly of his father. The duke of Sussex said: 'His enthusiasm and energy are truly infectious; it has certainly inspired William and I to get involved in issues we care passionately about and to do whatever we can to make a difference.'
He added: 'You have inspired William and I, and looking out here today, it is clear to see that we are not alone. You have created an incredible body of work that has, and will continue to make such a huge difference to so many people's lives both here and around the world.'
