MGR Mark Langham, the administrator of Westminster Cathedral for seven years, has been appointed to the Pontifical Council for Promoting Christian Unity.
Mgr Langham will work as secretary under Cardinal Walter Kasper, president of the Pontifical Council, and will focus on dialogue with Anglicans and Methodists. He will be part of the Catholic delegation attending the Lambeth Conference in July but will not take up his post in Rome until September.
Cardinal Cormac Murphy-O'Connor said he was "extremely grateful" for the work Mgr Langham had done at the Cathedral and congratulated him on his appointment.
Mgr Langham said he was honoured by the appointment and explained that it had been "an immense privilege" to serve as Cathedral administator.