 Complete the following phrase:  The Thirteenth and early Fourteenth Centuries also saw a series of conflicts between the burgesses of the town and St. Johns Abbey and several local lords over the infringements of their charter rights. In 1253, following long-standing dispute over access to the free warren in West Donyland and the extent of the Abbots jurisdiction, a group of forty Colcestrians attacked and destroyed the Abbeys gallows and tumbrels at Greenstead to the East of the town, before cutting the ropes of the Abbeys ships at Brightlingsea. By 1255 these particular disagreements were settled, although an anti-Abbey riot broke out at the Midsummers Fair in 1272. Then in 1312 the townspeople became entangled in disputes with the powerful FitzWalter family, lords of Lexden manor and close relations of the Plantagenets, when they began trespassing and hunting on Baron Robert FitzWalters private estates as well as contesting the extent of his jurisdiction and control of pastureland. In 1319 a group of 174 Colcestrians attacked servants and tets of Essex lord Hugh de Neville who was gathering supplies and men for 