November 2017: Harry and Meghan give an interview to mark their engagement, and the former Suits star pays tribute to her future sister-in-law, saying that the ‘being neighbours’ the two couples had spent time together.
‘Catherine has been absolutely amazing, as has William as well, you know, fantastic support,’ Meghan said.
December 2017: Meghan and Kate are seen in public together for the first time as they attend the Christmas Day service at Sandringham, with the Cambridges hosting Harry and Meghan at their Norfolk Home, Anmer Hall.
February 2018: The pair carry out their first official joint engagement, appearing at the Royal Foundation forum in London with William and Harry, and the couples are quickly dubbed the ‘fab four’.
May 2018: Prince Harry and Meghan tie the knot at St George’s Chapel, Windsor, with Kate’s children Princess Charlotte and Prince George among the bridesmaids and page boys.
July 2018: Meghan and Kate make their first joint public appearance without William and Harry when they attend the Ladies Singles Final at Wimbledon.
November 2018: It emerges that Harry and Meghan are planning to move out of Kensington Palace and make their home at Frogmore Cottage, Windsor, as well as formally dividing their joint courts, with Harry and Meghan setting up separately.
And rumours started to swirl that a rift between the two Duchesses was to blame.
A source said at the time: ‘Kate and Meghan are very different people. They don’t really get on.’
That same month, sources claim that Kate was left in tears after Princess Charlotte’s bridesmaid dress fitting ahead of Meghan’s wedding.
December 2018: Rumours start to swirl that the Cambridges would not be hosting the Sussexes at Anmer Hall over Christmas, after a ‘ghastly row’ the previous year.
Sources claimed that Kate had a quiet word with Meghan for reprimanding one of her staff, leading to the Duchess of Sussex complaining to Harry that she’d been ‘told off’.
However, a Kensington Palace spokesperson shot down the story saying: ‘This never happened.’
On Christmas Day, Kate and Meghan put on a united front as they chatted and smiled on the way to church.
Harry and Meghan were hosted by the Queen at Sandringham, while Kate and William stayed at their own home, Anmer Hall.
June 2019: It’s announced that Harry and Meghan are formally splitting from The Royal Foundation with the Duke and Duchess of Cambridge to set up their own charitable organisation.
July 2019: Kate and Meghan enjoy their first joint outing since Wimbledon the previous year as they support William and Harry at a charity polo tournament.
Although pictures didn’t capture much interaction between the two, they appeared relaxed as Meghan doted on Baby Archie and Kate looked after her three children.
Today, the Duchesses are attending Wimbledon together.