On 5 March 1291 Pope Nicholas granted Cardinal Giovanni Boccamazza the power to investigate and reform the apparently large number of encroachments and illegal occupations made by various persons upon the properties belonging to the Lateran Basilica. The Senators and other magistrates of Rome were ordered to assist the Cardinal in restoring the properties of S. Giovanni Laterano. The same service was imposed on Cardinal Giovanni with respect to the Premonstratensian monastery of S. Quirico "de valle introducti" in the diocese of Reate. He was then empowered to do the same for the Monastery of Farfa.