Prince Harry and Meghan Markle are related via a distant ancestor, according to a family tree dating back to 1480.
The pair have one link in their family history in the 15th century.
The relation comes through Meghan’s paternal side, which has its roots in Yorkshire. The British man named Ralph Bowes is Meghan’s ancestor from 15 generations ago.
Mr Bowes had extensive estates and Steatlam Castle, and was even the High Sheriff of County Durham.
It might seem odd to be distantly related to your boyfriend or girlfriend, but for royals keeping it in the family is the done thing – even very recently.
Numerous British royals have even married their first cousins, including Queen Victoria and her beloved husband Prince Albert, to whom she dedicated an enormous monument in Hyde Park when he died.
Their shared relative was Francis, Duke of Saxe-Coburg-Saalfeld, and his wife who were both their grandparents.
But inter-family relationships have taken place within the current royal family too.
Prince Charles married Diana Spencer, who later went on to be known as Princess Diana, in 1981. The pair were 7th cousins once removed, related via William Cavendish, 3rd Duke of Devonshire.
Even Prince William and Kate Middleton are very distantly related. They are 11th cousins once removed via Sir William Blakiston, who was a Baronet.
Queen Elizabeth II and her spouse are more closely related. They are second cousins once removed through Christian IX of Denmark and also third cousins because they are both great-great-grandchildren of Queen Victoria.
The Queen’s father George VI and the Queen Mother, whose name was Elizabeth Bowes-Lyon were 13th cousins as they were both related descended from Henry VII of England.
This might seem strange, but historically royals were keen to marry close allies for influence.
One scientist recently claimed all humans are more closely related than we think anyway.
Peter Ralph of USC Dornsife said: “The fact that everyone has two parents means that the number of ancestors for each individual doubles every generation.
“By using basic mathematics, we can calculate that ten generations ago each individual had a thousand ancestors, and 20 generations ago they had a million and so on.
“But when we get to 40 generations ago, in the time of Charlemagne, we arrive at a trillion ancestors and that is a problem because we now have more ancestors than there were people. Thus one can deduce that a lot of those ancestors must be the same person.”