sentences:  Mapenor gave Stephen Langton, the Archbishop of Canterbury, and Mapenor's ecclesiastical superior, a declaration of obedience on 27 October 1216, and was consecrated on 18 December 1216 by Sylvester the Bishop of Worcester.Although Mapenor's time as bishop was short – just over two years – over 20 of his charters survive.These include a number for Leominster Priory and Reading Abbey.