WATCH: The royal family wish 'granny' Queen Elizabeth a happy birthday
Cape Town – Britain's longest reigning monarch celebrates her 93rd birthday on Sunday, 21 April.
To celebrate the occasion, Buckingham Palace shared a montage video of Queen Elizabeth including "a photograph from each decade of the queen’s life."
WATCH THE VIDEO HERE:
Followed by the video were posts by the queen's two grandchildren, Princes William and Harry on their respective social media accounts.
"Wishing a very happy 93rd birthday to Her Majesty The Queen!" Kensington Palace wrote on Twitter, alongside a number of photos of Queen Elizabeth and the Duke and Duchess of Cambridge.
SEE THE TWEET HERE:
Sharing a more informal message, Harry and Meghan wished the queen alongside a gallery of images on Instagram.
"Happy Birthday Your Majesty, Ma’am, Granny. Wishing you the most wonderful day! Harry & Meghan," Sussex Royal wrote.
SEE THE POST HERE:
The queen typically celebrates two birthdays every year: Her actual birthday on 21 April, which she usually marks privately with her family. And her "official birthday" that usually falls on the second Saturday in June, when she joins the Trooping the Colour military parade in central London.
The monarch is expected to attend a church service at St George's Chapel on Sunday morning to celebrate Easter.