公元11世纪末是西欧封建主义形成的时期。在封建制度笼罩之下,各地的封建主们为了向外扩展领土和攫夺财富,纷纷割据自立,私战和匪盗盛行。私战的作战双方主要是各自属下的骑士。他们除在自己的封地建筑坚固的城堡之外,还豢养众多骑士。此时的欧洲,经济上正处于复兴时期,许多新兴的城市在不断崛起,城市的居民 The end of the 11th century AD is a period of feudalism in Western Europe. Shrouded by the feudal system, feudal lords in various places fought for their independence, private war and banditry in order to expand their territory and seize wealth. The two sides in private combat are mainly their own knights. In addition to their stout built fortified castle, they also raise a large number of knights. At this time in Europe, the economy is in the renaissance period, many emerging cities are rising, urban residents