In 1325, the Teutonic Knights built a castle called 'Yladia' or 'Ilaw', later known as 'Preussisch Eylau', in the center of the Old Prussian region Natangia. Ylow is the Old Prussian term for mud or swamp. The settlement nearby developed slowly, but in 1348 the Teutonic Order gave the privilege to establish twelve pubs at the surrounding area of the castle. Even though the village had only a few inhabitants, due to its central position it was often used as meeting place for different officials of the Order. In 1427 e.g. the Eylau County Law (Eylauer Landesordnung) was published by the Order.
Throughout the Thirteen Years' War the castle was besieged on May 24, 1455 by troops of the Prussian Confederation under the command of Remschel von Krixen, but the garrison defeated these troops. Also throughout the Horsemen's War in 1520 the castle was unsuccessfully besieged by troops of the Polish Kingdom, which caused a devastation of the village itself.References:
Built around AD 90 to entertain the legionaries stationed at the fort of Caerleon (Isca), the impressive amphitheatre was the Roman equivalent of today’s multiplex cinema. Wooden benches provided seating for up to 6,000 spectators, who would gather to watch bloodthirsty displays featuring gladiatorial combat and exotic wild animals.
Long after the Romans left, the amphitheatre took on a new life in Arthurian legend. Geoffrey of Monmouth, the somewhat imaginative 12th-century scholar, wrote in his History of the Kings of Britain that Arthur was crowned in Caerleon and that the ruined amphitheatre was actually the remains of King Arthur’s Round Table.
Today it is the most complete Roman amphitheatre in Britain.