sentences:  These lands, at Perth, had been donated by Count William I of Provence with his wife Adelaide-Blanche, as well as by a previous donation by William's father, Boson.A dispute over these lands arose by four brothers, sons of Nevolongus, who pope Sergius threatened with excommunication if they did not withdraw their claim.The claim was withdrawn and the lands remained under the control of Adelaide-Blanche acting as regent for her son William II of Provence.