Unlike double monasteries, double minsters often centered upon providing pastoral functions for the surrounding laity. Through royal support the bishopric was able to gradually extend its control over prominent minsters. He expelled the secular canons of both minsters and replaced them with monks. The "old minsters" mostly then were designated as parish churches. Some may have been based around minsters as in southern Anglo-Saxon England. Wickhambreaux was one of the early minsters founded in Kent before 700. Three West Yorkshire minsters are at Dewsbury (1993), Halifax (2009) and Leeds (2012).