A distant relative on the Duke's maternal side hailed from India

Prince William is set to become the first British monarch to have Indian ancestry.

It’s been revealed through DNA testing that the Duke, 31, has a great-great-great-great-greatgrandmother on his mum Princess Diana‘s side who was at least half-Indian.

Eliza Kewark – who’s often been described as Armenian – is now known to have lived in the country’s western region.

She was married to Scotsman Theodore Forbes, who left his wife and sent their daughter to live in Britain at the age of six.

William‘s Indian heritage was discovered by genetics experts at the University Of Edinburgh and website BritainsDMA using saliva samples from family members.

The rare strand of DNA has been recorded in 14 other people and can only be passed on in the female line, meaning William and wife Kate Middleton‘s baby won’t have it.

William is second in line to the throne, behind his father Prince Charles.

‘I always assumed that I was part-Armenian,’ says William‘s aunt Mary Roach, who provided DNA.

‘So I am delighted that I also have an Indian background.’

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Anna Duff