Upon his death, he was almost universally revered as a saint in England, with miracles reported at his shrine and pilgrims to it granted an indulgence by the bishop of Lincoln. However, attempts by successive Bishops of Lincoln, the University of Oxford, and Edward I to secure a formal papal canonisation failed. The attempts to have him canonised were unsuccessful because of his opposition to Pope Innocent IV. The reason for this also seems to be because it was rumoured that Grosseteste's ghost was responsible for the death of the Pope.