Ejected preachers such as John Blackadder conducted religious ceremonies at conventicles. Some of those who participated in conventicles where Protestant ideas were presented later became Anabaptists. Dudley questioned Hutchinson about her conventicles and her association with the other conspirators. The 6th canon of the Synod of Gangra pronounces against conventicles. Its meetings thus became strictly conventicles. These private meetings were known as conventicles. Early Mormon meetings were sometimes referred to as conventicles. Robert was imprisoned in the Bass for preaching at conventicles (1673). In the succeeding century the catacombs were the scene of Christian conventicles. Particularly in the south-west many of the people began to attend illegal field conventicles. The growth of conventicles is closely related to Pietism and the Charismatic Movement. Particularly in the south-west many of the people here began to attend illegal field conventicles. The conventicles resumed after a brief period of suspension. Many of the covenanting prisoners on the Bass Rock had been charged with attending conventicles. There, the faithful organized into conventicles for that "met for prayer and Bible reading".