Although Prince William is second in the British line of succession, Princess Diana’s bloodline reportedly gives the Duke of Cambridge a stronger claim to the throne than his father.

Queen Elizabeth has yet to abdicate her position as the head of the monarchy, but some believe William should ascend the throne rather than allowing Charles to reign.

Royal ancestry expert Matt Baker told the Daily Star, Princess Diana is from a more “royal bloodline” compared to Prince Charles. As a result, Prince William is considered to be more royal than his father.

“She has more English royal blood in her veins than does Prince Charles, her 16th cousin once removed. All of it, flowing from illegitimate unions. Four of her ancestors were mistresses to English Kings,” he explained.

Although the Prince and Princess of Wales were related, Diana’s ancestry dates back to King Charles II and King James II. Whereas Charles allegedly comes from an “illegitimate” bloodline.

While it seems Prince William may have a stronger claim to the throne, he most likely won’t become King when Queen Elizabeth abdicates. In April 2018, Prince Charles was named the Queen’s successor, as Head of the Commonwealth.

“It is my sincere wish that the Commonwealth will continue to offer stability and continuity to future generations, and will decide that one day the Prince of Wales should carry on the important work started by my father in 1949,” Elizabeth during a speech to the leaders of the Commonwealth.

“By continuing to treasure and reinvigorate our associations and activities, I believe we will secure a safer, more prosperous and sustainable world for those who follow us: a world where the Commonwealth’s generosity of spirit can bring its gentle touch of healing and hope to all,” she added.

When Charles becomes King, William will take on his father’s title, Prince of Wales, along with new responsibilities.

Prince William and Prince Charles
Pictured: Prince William and Prince Charles watch the athletics at Lee Valley Track during the Invictus Games on Sept. 11, 2014 in London. Getty Images/Chris Jackson