sentences:  The priory was the second religious house to be founded in the Earldom of Chester; the first was the Benedictine St Werburgh's Abbey at Chester, founded in 1093 by Hugh Lupus, the first Earl of Chester.The priory at Runcorn had a double dedication, to Saint Bertelin and to Saint Mary.The authors of the "Victoria County History" suggest that the dedication to St Bertelin was taken from a Saxon church already existing on the site.