Royal watchers had a glimpse of an extremely rare moment of Queen Elizabeth II tearing up.

Sussexes (Prince Harry and Meghan Markle) and Cambridges (Prince William and Kate Middleton) joined the Queen to witness the wreath-laying rites for the fallen war heroes at the Cenotaph Memorial Central in London. The Duchess of Cornwall and the Duchess of Cambridge joined Queen Elizabeth II in the same balcony to watch the traditional service.

Prince Charles stood up and laid the first wreath on behalf of the 93-year-old Queen. Watchers saw Her Royal Highness shed a tear as soon as Charles finally rested the wreath.

Despite this recent "rare" event, the eager royal watchers have also seen Queen Elizabeth II cry numerous times before during exclusive Royal family and social events, including the following:

The Funeral of King George VI

King George suffered from lung cancer and underwent surgery in hopes of eliminating the cancer cells. The king never knew about the condition that he even went out to hare-shoot one day before he was found dead due to coronary thrombosis in his sleep on Feb. 6, 1952.

In Feb. 15, 1952 during his burial, Queen Elizabeth II, together with her grandmother Queen Mary and mother Queen Elizabeth, were veiled heavily during the funeral of King George VI since they were instructed not to show any emotion.

Decommissioning of Britannia

In Dec. 11, 1997, Queen Elizabeth II dropped a tear as she bid a farewell to their then-royal yacht "Her Majesty's Yacht Britannia" after its last voyage on Oct. 20 of the same year.

The 40-year-old yacht belonged to her father, King George VI. However, the king decided to have Queen Elizabeth II and her husband King Philip oversee and manage the yacht since "he would not be around" anymore to use it. Britannia played a huge part in the Royal Family's lives as they used it during their royal visits abroad.

Thatcher Kept South Africa Away from Soviet

Queen Elizabeth II's sister, Princess Margaret, reportedly said that she saw the Queen cried after her disparity with now-former British Prime Minister Margaret Thatcher.

The two argued about the decision to leave the Commonwealth or not. Thatcher disheartened the Queen since she did not want the Commonwealth to be divided.

The Queen and the then-Foreign Secretary Geoffrey Howe failed to change the vision of the former British Prime Minister, and it made Queen Elizabeth II emotional since she felt that she was responsible in helping the post-colonial association survive.

READ MORE: Queen Elizabeth II Sharper at 93 -- Here's the Proof!