Middle Anglia , a province of Anglo-Saxon England, lies between East Anglia and Mercia and is inhabited by a variety of races. It included definitely the cymbals of Nene, Welland and Great Ouse with the districts west of the Fen and probably extended into what is now Oxfordshire. Parts of the area were settled early, but nothing is known of its political history until it was subdued in 653 under the rule of Penda's son Mercia. Peada . St. Guthlac, who was born there, belonged to the Mercian royal family. Peada introduced Christianity, but no permanent seat was established until 737, when one was founded at Leicester. St. Wilfrid administered the province in his exile from 691–705.
The province contained the religious foundations of Peterborough, Ely, Oundle and Crowland.