FACTBOX-The Princess Diana conspiracies

LONDON (Reuters) - A decade after her death in a Paris road tunnel, conspiracy theories claiming Princess Diana was murdered continue to flourish.

Here is a list of some of the most common and bizarre theories which some believe led to her death.

THE ROYAL FAMILY

The most commonly-reported conspiracy is that Diana and her lover Dodi al-Fayed were murdered by British secret agents from the overseas spy agency MI6 on the orders of the royal family.

The theory, espoused by Dodi's father Mohamed al-Fayed, is based on the claim that the couple were engaged to be married and that Diana was pregnant.

Al-Fayed argues that the royal family and the British establishment could not face the prospect of Diana's two sons having a Muslim stepfather and their very existence would be a millstone round the neck of the royals.

There are many slightly varying theories based on this central premise, such as that rogue MI6 agents carried out the killing without their handlers knowledge.

DIANA FAKED DEATH

Fed up with the incessant press attention and intrusions into her private life Diana faked her death. To escape from the attention she set up a spectacular crash with the help of Dodi and is now living in peace somewhere. There is even a theory that the crash was meant to be a fake but went horribly wrong.