Roger Laurence published his controversial Lay Baptism Invalid that was looked at by 13 bishops in 1712 who said baptisms by non-episcopal ministers were not valid.
Laurence then published his Lay Baptism Invalid, which gave rise to a controversy. It was discussed at a dinner of thirteen bishops at Lambeth Palace on 22 April 1712, and a declaration was drawn up in favour of the validity of baptisms performed by non-episcopally ordained ministers. 
