Prince Harry and Meghan Markle reportedly want to attend King Charles III's coronation this May but are said to have some requests that must now be negotiated before they commit to the event. 

• Prince Harry and Meghan Markle are reportedly negotiating the terms of their coronation attendance as a source reveals they do want to be at the historic event this May.

• The alleged demands they have brought to the table mean the couple now has to reach a compromise with the Royal Family to ensure their place at the coronation.

• In other royal news, Prince Harry's children Archie and Lilibet have not been invited to King Charles' Coronation.

Speculation over whether Prince Harry and Meghan Markle will attend King Charles III's coronation on May 6 has been flying ever since the event's date was announced. While it has been confirmed that the royal couple have indeed been invited to the historic event, they have so far refused to say whether they will be attending.

And this now appears to be because they genuinely don't know if they will join the rest of the family for the celebrations. The decision will not be made until they come to a compromise with the King and the Royal Family over a series of demands they've now reportedly brought to the table.

A source told OK! Magazine that one of the demands involves Archie and the couple asking for "some kind of celebration or acknowledgment to be factored into the day’s plans to ensure that his fourth birthday won’t get lost during the momentous day."

The second demand? Following the news that Princess Eugenie and Jack Brooksbank have moved into Harry and Meghan's former Windsor home, Frogmore Cottage, the couple want to stay with them, according to sources.

"They want their children to spend time with other family members, especially their cousin August who is around about the same age as Lilibet. Both couples get on extremely well and are keen for their children to be close," a source told OK!.

This source also added that, after their exclusion from the balcony during the Queen's Platinum Jubilee celebrations, the couple want to be included on the Buckingham Palace balcony on coronation day.

They explain, "This could prove a real sticking point because the Palace has narrowed it down to only working members of the Royal Family on the balcony. Harry and Meghan are keen that they too should be a part of that special family moment."

The last demand allegedly relates to an ongoing legal case between the Sussexes and the Home Office over their security. It is thought the couple wants security while they are in the UK and this needs to be ironed out before they attend the coronation.