"After Llywelyn's death Peckham appealed to the king on behalf of the Welsh clergy, and after the completion of the conquest, took various measures intended to bring the church in Wales into conformity with English customs, and also induced the king to adopt some measures for remedying the damage which had been done to the Welsh churches through the war."
January 1, 1970
https://en.wikiquote.org/wiki/John_Peckham