The first authentic record of Lichfield occurs in Bede's history, where it is called Licidfelth and mentioned as the place where St Chad fixed the episcopal see of the Mercians in 669. The first Christian king of Mercia, Wulfhere, donated land at Lichfield for St Chad to build a monastery. It was because of this that the ecclesiastical centre of Mercia became settled as the Diocese of Lichfield, which was approximately 7 miles (11 km) northwest of the seat of the Mercian kings at Tamworth.