<P> The Royal Marriages Act 1772 was an act of the Parliament of Great Britain , which prescribed the conditions under which members of the British Royal Family could contract a valid marriage , in order to guard against marriages that could diminish the status of the royal house . The right of veto vested in the sovereign by this act provoked severe adverse criticism at the time of its passage . It was repealed as a result of the 2011 Perth Agreement , which came into force on 26 March 2015 . Under current law , the first six people in the line of succession ( currently Prince Charles , Prince William , Prince George , Princess Charlotte , Prince Louis and Prince Harry ) need permission to marry if they and their descendants are to remain in the line of succession . </P>
who has to ask the queen 's permission to marry
the first six people in the line of succession