In 2011 , the Deputy Prime Minister of the United Kingdom , Nick Clegg , announced that the British government was considering a change in the law . At about the same time , it was reported that Prime Minister David Cameron had written to the prime ministers of each of the other 15 Commonwealth realms , asking for their support in changing the succession to absolute primogeniture , and notifying them he would raise his proposals at that year 's Commonwealth Heads of Government Meeting ( CHOGM ) in Perth , Australia
that year 's Commonwealth Heads of Government Meeting
Commonwealth Heads of Government Meeting 2011
Perth Agreement