It has been tradition at Easter for the Royal Family to gather at Windsor and attend a church service together with the Queen.
In previous years, it has been similar to Christmas with most members of the Firm heading to the service, which usually takes place in St George's Chapel.
But rather than all turning up en-masse, the royals follow a tradition that means that the most senior member of the family arrives last.
In most cases, this is the Queen, and pictures from Easter services in years gone by have shown her relatives lining up outside the chapel waiting to greet her before they follow her lead and head inside.
However, in 2018, the Duke and Duchess of Cambridge broke this royal rule by turning up after Her Majesty - but it seems it wasn't due to their tardiness.
It's understood they got caught in traffic on the M4 on the way to Windsor after spending a few days with Kate's family along with Prince George and Princess Charlotte. Kate was pregnant with Prince Louis at the time.
This meant they arrived after the Queen and after the service started and they had to quietly enter the chapel after the others.
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But it's likely the monarch was understanding - and she was later pictured smiling and laughing with them.
However, it could be that William and Kate getting stuck in traffic travelling to Windsor could become a thing of the past - that's because reports have suggested they want to move to the area.
It's said they've already started looking for places to live after checking out several royal residences and are also considering private property.
And in addition, they're also said to have visited schools in the surrounding area for their children Prince George, Princess Charlotte and Prince Louis.
The family currently split their time between Kensington Palace in London and Amner Hall in Norfolk.
But a move to Windsor would see them be closer to some relatives - not least the Queen, who now spends much of her time at Windsor Castle.
Living on the doorstep of the Queen means William, Kate and the kids could pop in more often to see Her Majesty.
It would reportedly mean a lot to the elderly monarch to have them nearby and from a strategic perspective, it would put William nearer to the action when discussing royal matters.
William has a close relationship with his grandmother and would often have tea with her when he was a pupil at nearby Eton College.
Meanwhile, a move to Windsor would also see them nearer Kate's parents Carole and Michael, who are based not far away in Bucklebury, Berkshire.
