Before his execution, Minsterworth was allowed write to the King. Although the letter is lost, it "probably contained an appeal for mercy and the usual kind of promise of information". He never received a response as it was probably opened by the Earl Marshal, Henry Percy, and never seen by Edward. This may have been, as suggested by David Moore, because Minsterworth named prominent sympathisers of Owen's which it was felt the King should be shielded from.
