On Monday 6 May, the newest member of the royal family arrived.
Archie Harrison Mountbatten-Windsor, the first child of the Duke and Duchess of Sussex, became the Queen's eighth great-grandchild.
The Queen's other great-grandchildren include the three offspring of the Duke and Duchess of Cambridge – Prince George, Princess Charlotte and Prince Louis.
Following Archie Harrison's christening, which is due to take place on Saturday 6 July at Windsor Castle, Prince Harry and Meghan will be releasing new photographs of their son.
In the lead-up to the private ceremony, we have taken a look at some of the best photographs of youngest members of the royal family.
From Prince Louis' debut to the world last April to Prince George singing the national anthem at Princess Eugenie and Jack Brooksbank's royal wedding, click in the gallery above to see our pick of the best images.
For all the latest news on Prince Harry and Meghan's son Archie Harrison, click here.
