The largest lobby group in favour of republicanism in the United Kingdom is the Republic campaign group, founded in 1983. The group has benefited from occasional negative publicity about the Royal Family, and Republic reported a large rise in membership following the wedding of Prince Charles and Camilla Parker-Bowles. Republic has lobbied on changes to the parliamentary oath of allegiance, royal finances and changes to the Freedom of Information Act relating to the monarchy, none of which have produced any change. However, Republic has been invited to Parliament to talk as witnesses on certain issues related to the monarchy such as conduct of the honours system in the United Kingdom.