Penda of Mercia
In the 9th and 10th centuries the district was frequently overrun by the Danes, who in 874 destroyed the famous priory of Wenlock, said to have been founded by St Milburga, granddaughter of King Penda of Mercia, and in 896 wintered at Quatford. In 912 Ethelfleda, the Lady of Mercia, erected a fortress at Bridgnorth against the Danish invaders, and in the following year she erected another at Chirbury.