Baldwin II “the Bald” built fortifications in Ghent on the left bank of the Leie. Residents gathered there and the first market - today's Groentenmarkt - was established. The town around the market developed rapidly, and both monasteries resumed their activities before the year 1000. St. Dunstan, the abbot of Glastonbury Monastery, found refuge in Sint-Pieters Monastery. A fortress was also built, which in time developed into Gravensteen Castle - the seat of the Counts of Flanders.