The pair will attend the official opening of the Storehouse Theatre, a lunch at Chester Town Hall and also open a new bridge. The queen can do the same for Meghan Markle and Prince Harry, as she also did it for Prince Andrew, making Princess Eugenie and Princess Beatrice princesses rather than making them Lady Eugenie and Lady Beatrice.
While this might seem standard practice for royal engagements with the Queen, this is actually quite a first.
Since then, the balcony has become known as a gathering place for the highest members of the royal family for the Trooping of the Colour.
Next week, Meghan is set to embark on her first solo royal engagement with the Queen.
The whole royal family, including the newlyweds, Prince William and Kate Middleton are expected to make an appearance at Buckingham Palace for the Queen's birthday celebrations on Saturday. In March 2012, she joined the monarch at the Fortnum and Mason store in London.
European Union initiates dispute with USA at WTO
Germany's Volkswagen, Europe's largest automaker, warned that the decision could start a trade war that no side would win. Commerce Secretary Wilbur Ross attacked the EU's "extreme protectionism" as President Trump planned the metal tariffs.
Meghan, 36, was walked part-way down the aisle by Prince Charles.
At the other end of the scale, the Duchess of Cambridge ranked the lowest of all royals for the third year in a row, attending just 63 United Kingdom engagements and 42 overseas.
It's nearly a month since Meghan walked down the aisle to marry Prince Harry at St George's Chapel, but her Suits co-stars still can't stop gushing about the big day.
The ceremony, held in order to celebrate the Queen's birthday, usually sees nearly all senior members of the royal family in attendance.
In fact, bookies in United Kingdom, who are known to bet on pretty much everything about the Royal family, also went to the extent of betting on Meghan's pregnancy. If the couple has any daughter together, they won't be able to call themselves Duchesses of Sussex, nor will they carry on their mother's Scottish title of Countess of Dumbarton or Meghan's Norther Irish moniker, Baroness Kilkeel.