In 1242, Guégon Le Gruc and his wife Agathe of Trent (daughter of Olivier and niece of Geoffroy of Trent) confirmed this pious donation. The parishioners of Abbaretz tried to oppose the increase in their tithes by the monks at Melleray. From the documents in the process, it can be seen that the area called the Forest of Abbaretz was inhabited in 1235 by Daniel and Bernard de Rozé, Guy Lague, Robin Daniel, Guillaume Robin, Riwallon Le Duc, Guillaume Robert, Pierre Constanz, Geffroy Grimaut, Guillaume Raffrey, and Judicaël Troynel who were all vassals of Geoffroy Trent.