in Moray, and Holmcultram Abbey in Cumberland. David also, like Alexander, patronised Benedictines, introducing monks to Coldingham (a non-monastic property of Durham Priory) in 1139 and having made it a priory by 1149. David's activities were paralleled by other "Scottish" magnates. For instance, the Premonstratensian house of Dryburgh Abbey was founded in 1150 by monks from Alnwick Abbey with the patronage of Hugh de Morville, Lord of Lauderdale. Moreover, six years after the foundation of Melrose Abbey, King Fergus of Galloway likewise founded a Cistercian abbey from Rievaulx, Dundrennan Abbey, which would become a powerful landowner in both Galloway and Ireland and was known to Francesco Pegolotti as Scotland's richest abbey. Not only were such monasteries an expression of David's undoubted piety, but they also functioned to transform Scottish society. Monasteries became centres of foreign influence, being founded by French or English monks. They provided sources of literate men, able to serve the crown's growing administrative needs. This was particularly the case with the Augustinians. Moreover, these new monasteries, and the Cistercian ones in particular, introduced new agricultural practices. In the words of one historian, the Cistercians were "pioneers or frontiersmen ... cultural revolutionaries, who carried new techniques of land management and new attitudes towards land exploitation". Duncan calls Scotland's new Cistercian establishments "the largest and most significant contribution by David I to the religious life of the kingdom". Cistercians equated spiritual health with economic achievement and environmental exploitation. Cistercian labour transformed southern Scotland into one of northern Europe's main sources of sheep wool. Bishopric of Glasgow Almost as soon as he was in charge of the Cumbrian principality, David placed the bishopric of Glasgow under his chaplain, John, whom David may have met for the first time during his participation in Henry's conquest of Normandy after 1106. John himself was closely associated with the Tironensian Order, and presumably committed to the new Gregorian ideas regarding episcopal organisation. David carried out an inquest, afterwards assigned to the bishopric all the lands of his principality, except those in the east of his principality which were already governed by the Scotland-proper based bishop of St Andrews. David was responsible for assigning to Glasgow enough lands directly to make the bishopric self-sufficient and for ensuring that in the longer term Glasgow would become the second most important bishopric in the Kingdom of Scotland. By the 1120s, work also began on building a proper