 The convocations still exist, in part because their approval is required for certain legislative proposals and in part because the House of Bishops and the House of Clergy of the General Synod are constituted by the members of the corresponding houses of the convocations.When clergy other than bishops began to take part in the convocations they sat together with the bishops in one single assembly and technically even today the members still constitute one single body.However, since the fifteenth century each convocation has sat as two houses