Wulfstan, the son of one of Bishop of Worcester's servants, was born in about 1010. After being educated at the abbeys in Evesham and Peterborough he returned to Worcester and eventually became a monk.
In 1062 Wulstan replaced Aldred of York as Bishop of Worcester. When William the Conqueror gained power in 1066 Wulfstan was one of the few English bishops to support the new government. As a result he was not purged with other English bishops between 1070 and 1072.