Senior Tories have expressed anger at the decision to invite Chinese leaders to the Queen's state funeral on Monday.
In a letter to the Commons and Lords Speakers, a group of MPs and peers said it was "extraordinary that the architects of genocide" against Uighur Muslims had been asked to attend.
Some 500 foreign leaders are expected to be at the funeral but invitations have not been extended to Russia and Belarus after diplomatic relations broke down over the war in Ukraine.
