merited the name of "the Wolf." Yet he was the friend of the holy Anselm, and died a monk. The struggle between Chester and Gwynedd for the possession of the Four Cantreds, the lands between the Conway and the Dee, was almost perpetual during the twelfth and thirteenth centuries, and the fortune of war continually changing. With the extinction of the old line of the Earls of Chester (1237) and the grant of the earldom to Prince Edward (1254), a new era opened for Wales.
Further south, in the Middle March, along the upper valleys of the Severn and the Wye, the great power of the Mortimers was growing. They had already stretched out a long arm to grasp Gwerthrynion. But the greatest expansion of their power came later, under Roger Mortimer, grandson of Llywelyn ap Iorwerth, friend of Edward I. in the wild days of his youth, persistent foe of Llywelyn ap Gruffydd; and soon the Mortimer lands embraced all Mid-Wales and reached the sea, and a Mortimer was strong enough to depose and murder a king and rule